As Adaptive Automaton enters the battlefield, choose a creature type. Adaptive Automaton is the chosen type in addition to its other types. Other creatures you control of the chosen type get +1/+1.

As Door of Destinies enters the battlefield, choose a creature type. Whenever you cast a spell of the chosen type, put a charge counter on Door of Destinies. Creatures you control of the chosen type get +1/+1 for each charge counter on Door of Destinies.

Changeling (This card is every creature type.) {X}: Until end of turn, creatures you control have base power and toughness X/X and gain all creature types.

Whenever you discard a card, exile that card from your graveyard. {2}, {T}: Draw a card, then discard a card. {4}, {T}, Sacrifice Bag of Holding: Return all cards exiled with Bag of Holding to their owner's hand.

As Brass Herald enters the battlefield, choose a creature type. When Brass Herald enters the battlefield, reveal the top four cards of your library. Put all creature cards of the chosen type revealed this way into your hand and the rest on the bottom of your library in any order. Creatures of the chosen type get +1/+1.

Target player draws two cards. Flashback—{1}{U}, Pay 3 life. (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Choose a creature type. Draw a card for each permanent you control of that type.

Commander creatures you own have "Whenever you cast a spell that shares a creature type with this creature, draw a card. This ability triggers only once each turn."

Whenever a nontoken creature enters the battlefield under your control, if it doesn't have the same name as another creature you control or a creature card in your graveyard, draw a card.

Equipped creature gets +3/+1. Whenever equipped creature dies, you may reveal cards from the top of your library until you reveal a creature card that shares a creature type with it. Put that card into your hand and the rest on the bottom of your library in a random order. Equip {1}

At the beginning of each player's draw step, if Howling Mine is untapped, that player draws an additional card.

As Icon of Ancestry enters the battlefield, choose a creature type. Creatures you control of the chosen type get +1/+1. {3}, {T}: Look at the top three cards of your library. You may reveal a creature card of the chosen type from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

As Kindred Discovery enters the battlefield, choose a creature type. Whenever a creature you control of the chosen type enters the battlefield or attacks, draw a card.

At the beginning of your upkeep, scry 1. Whenever you cast a creature spell, you may pay {G}. If you do, draw a card.

Whenever an opponent casts a spell, you may draw a card unless that player pays {1}.

As Titan of Littjara enters the battlefield, choose a creature type. Titan of Littjara is the chosen type in addition to its other types. Whenever Titan of Littjara enters the battlefield or attacks, you may draw a card for each other creature you control that shares a creature type with it. If you do, discard a card.

({T}: Add {G} or {U}.) As Breeding Pool enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

When Brokers Hideout enters the battlefield, sacrifice it. When you do, search your library for a basic Forest, Plains, or Island card, put it onto the battlefield tapped, then shuffle and you gain 1 life.

{T}: Add {C}. {T}: Add {G} or {W}. Brushland deals 1 damage to you.

Whenever City of Brass becomes tapped, it deals 1 damage to you. {T}: Add one mana of any color.

{T}: Add one mana of any color in your commander's color identity.

Crumbling Necropolis enters the battlefield tapped. {T}: Add {U}, {B}, or {R}.

{T}, Sacrifice Evolving Wilds: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

{T}: Add one mana of any color that a land an opponent controls could produce.

({T}: Add {G}.)

Frontier Bivouac enters the battlefield tapped. {T}: Add {G}, {U}, or {R}.

Gemstone Mine enters the battlefield with three mining counters on it. {T}, Remove a mining counter from Gemstone Mine: Add one mana of any color. If there are no mining counters on Gemstone Mine, sacrifice it.

({T}: Add {U}.)

Jungle Shrine enters the battlefield tapped. {T}: Add {R}, {G}, or {W}.

{T}: Add {C}. {T}: Add {R} or {G}. Karplusan Forest deals 1 damage to you.

{T}: Add {C}. {T}: Add {B} or {G}. Llanowar Wastes deals 1 damage to you.

{T}: Add {C}. {T}: Put a charge counter on Mirrodin's Core. {T}, Remove a charge counter from Mirrodin's Core: Add one mana of any color.

({T}: Add {R}.)

Opulent Palace enters the battlefield tapped. {T}: Add {B}, {G}, or {U}.

Path of Ancestry enters the battlefield tapped. {T}: Add one mana of any color in your commander's color identity. When that mana is spent to cast a creature spell that shares a creature type with your commander, scry 1. (Look at the top card of your library. You may put that card on the bottom.)

({T}: Add {W}.)

Rejuvenating Springs enters the battlefield tapped unless you have two or more opponents. {T}: Add {G} or {U}.

Sandsteppe Citadel enters the battlefield tapped. {T}: Add {W}, {B}, or {G}.

Savage Lands enters the battlefield tapped. {T}: Add {B}, {R}, or {G}.

As Secluded Courtyard enters the battlefield, choose a creature type. {T}: Add {C}. {T}: Add one mana of any color. Spend this mana only to cast a creature spell of the chosen type or activate an ability of a creature source of the chosen type.

({T}: Add {U} or {R}.) As Steam Vents enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

({T}: Add {R} or {G}.) As Stomping Ground enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

({T}: Add {B}.)

{T}, Sacrifice Terramorphic Expanse: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

As Unclaimed Territory enters the battlefield, choose a creature type. {T}: Add {C}. {T}: Add one mana of any color. Spend this mana only to cast a creature spell of the chosen type.

({T}: Add {U} or {B}.) As Watery Grave enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

{1}{W}{W}, {T}, Discard a card: The next time a source of your choice would deal damage to you this turn, prevent that damage. You gain life equal to the damage prevented this way.

{G}, {T}, Discard a card: Prevent all combat damage that would be dealt this turn.

{U}, {T}, Discard a card: Counter target spell or ability that targets a creature.

As Etchings of the Chosen enters the battlefield, choose a creature type. Creatures you control of the chosen type get +1/+1. {1}, Sacrifice a creature of the chosen type: Target creature you control gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)

{2}{G}, {T}, Discard two cards: All lands target player controls become 3/3 creatures until end of turn. They're still lands.

{X}{B}, {T}, Discard a card: Target creature gets +X/+0 until end of turn.

{T}: Add one mana of any color in your commander's color identity.

{B}, {T}, Discard a card: Add {B}{B}{B}.

Search your library for up to two basic land cards, reveal those cards, put one onto the battlefield tapped and the other into your hand, then shuffle.

{2}{U}, {T}, Discard a card, Sacrifice a land: Search your library for up to two basic land cards, put them onto the battlefield, then shuffle.

{G}, {T}, Discard a card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.

{G}, {T}, Discard a card: Until end of turn, if you tap a land for mana, it produces one mana of a color of your choice instead of any other type and amount.

{T}: Add {C}{C}. {2}, {T}, Sacrifice Hedron Archive: Draw two cards.

As Herald's Horn enters the battlefield, choose a creature type. Creature spells you cast of the chosen type cost {1} less to cast. At the beginning of your upkeep, look at the top card of your library. If it's a creature card of the chosen type, you may reveal it and put it into your hand.

As Heraldic Banner enters the battlefield, choose a color. Creatures you control of the chosen color get +1/+0. {T}: Add one mana of the chosen color.

{G}, {T}, Discard a card: Create a 1/1 green Elf Druid creature token named Llanowar Elves. It has "{T}: Add {G}."

{1}{G}, {T}, Discard a card: Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

{T}: Add {C}{C}.

Return each creature card with mana value X from your graveyard to the battlefield.

{X}{U}, {T}, Discard two cards: Return X target creatures to their owners' hands.

{2}{R}, {T}, Discard a card: Arc Mage deals 2 damage divided as you choose among one or two targets.

Flying Whenever you cycle or discard another card, put a -1/-1 counter on each creature your opponents control. Cycling {2} ({2}, Discard this card: Draw a card.)

{2}{W}, {T}, Discard a card: Exile target attacking creature. Its controller gains life equal to its toughness.

{1}{W}, {T}, Discard a card: Destroy target artifact or enchantment.

Destroy target enchantment. Madness {W} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

{X}{R}, {T}, Discard a card: Destroy all artifacts with mana value X or less.

{R}, {T}, Discard a card: Destroy target blue permanent. {1}{R}, {T}, Discard a card: Jaya Ballard, Task Mage deals 3 damage to any target. A creature dealt damage this way can't be regenerated this turn. {5}{R}{R}, {T}, Discard a card: Jaya Ballard deals 6 damage to each creature and each player.

{X}{R}, {T}, Discard two cards: Latulla, Keldon Overseer deals X damage to any target.

{2}{W}{W}, {T}, Discard two cards: Destroy all creatures except for Mageta the Lion. Those creatures can't be regenerated.

{2}{B}, {T}, Discard a card: Destroy target nonblack creature. It can't be regenerated.

{U}{U}, {T}, Discard a card: Counter target creature spell.

{U}{U}, {T}, Discard a card: Counter target noncreature spell.

Destroy target creature. Madness {B}{R} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Flying {U}, {T}, Discard a card: Create a 1/1 blue Faerie creature token named Cloud Sprite. It has flying and "Cloud Sprite can block only creatures with flying."

{W}, {T}, Discard a card: Create a 1/1 white Kithkin Soldier creature token named Goldmeadow Harrier. It has "{W}, {T}: Tap target creature."

Destroy target artifact. Flashback {G} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Create thirteen tapped 2/2 black Zombie creature tokens. Flashback {7}{B}{B}{B} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Madness {X}{R} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.) Avacyn's Judgment deals 2 damage divided as you choose among any number of targets. If this spell's madness cost was paid, it deals X damage divided as you choose among those permanents and/or players instead.

When Big Game Hunter enters the battlefield, destroy target creature with power 4 or greater. It can't be regenerated. Madness {B} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

{4}, {T}: Create a 2/2 colorless Shapeshifter creature token with changeling. (It has every creature type.)

Counter target spell. Madness {3}{U} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Counter target spell unless its controller pays {1} for each card in your graveyard. Madness {U} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Choose a permanent type. Return all cards of the chosen type from your graveyard to your hand. Flashback {5}{G}{G} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Choose a creature type. Creatures that aren't of the chosen type get -3/-3 until end of turn.

When Crystal Grotto enters the battlefield, scry 1. {T}: Add {C}. {1}, {T}: Add one mana of any color.

Whenever you discard a card, you may exile that card from your graveyard. {2}, {T}: Draw a card, then discard a card. {T}: Put a card exiled with Currency Converter into your graveyard. If it's a land card, create a Treasure token. If it's a nonland card, create a 2/2 black Rogue creature token.

Destroy target nonblack creature. Madness {B} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Devil's Play deals X damage to any target. Flashback {X}{R}{R}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Each player chooses a creature they control. Destroy the rest. Flashback {5}{W}{W} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Whenever you cycle or discard a card, you may pay {1}. If you do, create a 2/2 blue Drake creature token with flying.

Whenever you discard one or more cards, create a tapped 2/2 black Zombie creature token. This ability triggers only once each turn.

Create five 1/1 white Human creature tokens. If this spell was cast from a graveyard, create ten of those tokens instead. Flashback {7}{W}{W} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Flash As Instruments of War enters the battlefield, choose a creature type. Creatures you control of the chosen type get +1/+1.

Return target creature to its owner's hand. Madness {U} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Search your library for up to two basic land cards, reveal those cards, put one onto the battlefield tapped and the other into your hand, then shuffle.

Destroy target tapped creature. Madness {1}{B} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Draw a card. Madness {U} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

For each creature token on the battlefield, its controller creates a token that's a copy of that creature. Flashback {4}{G}{G}{G} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

As Progenitor's Icon enters the battlefield, choose a creature type. {T}: Add one mana of any color. {T}: The next spell of the chosen type you cast this turn can be cast as though it had flash.

Ascend (If you control ten or more permanents, you get the city's blessing for the rest of the game.) As Radiant Destiny enters the battlefield, choose a creature type. Creatures you control of the chosen type get +1/+1. As long as you have the city's blessing, they also have vigilance.

As Rally the Ranks enters the battlefield, choose a creature type. Creatures you control of the chosen type get +1/+1.

Changeling (This card is every creature type.) As Realmwalker enters the battlefield, choose a creature type. You may look at the top card of your library any time. You may cast creature spells of the chosen type from the top of your library.

As an additional cost to cast this spell, sacrifice a nonland permanent. Exile target nonland permanent. Flashback {2}{W}{B} (You may cast this card from your graveyard for its flashback cost and any additional costs. Then exile it.)

Return target permanent card with mana value 3 or less from your graveyard to the battlefield. If this spell was cast from a graveyard, you may copy this spell and may choose a new target for the copy. Flashback {4}{W} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

As Shared Triumph enters the battlefield, choose a creature type. Creatures of the chosen type get +1/+1.

{B}, {T}, Discard a card: Create a 1/1 black Zombie Goblin creature token named Festering Goblin. It has "When Festering Goblin dies, target creature gets -1/-1 until end of turn."

{1}, {T}, Discard a card: Create a 1/1 colorless Sliver artifact creature token named Metallic Sliver.

Whenever a player discards a card, you may pay {W}. If you do, create a 1/1 white Spirit creature token with flying.

{T}: Add {C}. {1}, {T}: Add one mana of any color.

Madness {X}{U}{U} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.) Gain control of target creature if its toughness is 2 or less. If this spell's madness cost was paid, instead gain control of that creature if its toughness is X or less.