Whenever one or more creatures attack, you may have target attacking creature gain double strike until end of turn.

Flash This spell costs {1} less to cast for each attacking creature you control. When Embercleave enters the battlefield, attach it to target creature you control. Equipped creature gets +1/+1 and has double strike and trample. Equip {3}

Whenever a creature enters the battlefield under your control, Impact Tremors deals 1 damage to each opponent.

Cast this spell only before attackers are declared. You choose which creatures attack this turn. You choose which creatures block this turn and how those creatures block.

Each other creature becomes a copy of target nonlegendary creature until end of turn.

Equipped creature has first strike and gets +X/+0, where X is the number of instant and sorcery cards in your graveyard. Equip {2}

{T}: Add {C}. {T}: Add {W} or {U}. Adarkar Wastes deals 1 damage to you.

{T}: Add {C}. {T}: Add {R} or {W}. Battlefield Forge deals 1 damage to you.

{T}: Add {C}. {U/R}, {T}: Add {U}{U}, {U}{R}, or {R}{R}.

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

{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.

Flood Plain enters the battlefield tapped. {T}, Sacrifice Flood Plain: Search your library for a Plains or Island card, put it onto the battlefield, then shuffle.

As Frostboil Snarl enters the battlefield, you may reveal an Island or Mountain card from your hand. If you don't, Frostboil Snarl enters the battlefield tapped. {T}: Add {U} or {R}.

As Furycalm Snarl enters the battlefield, you may reveal a Mountain or Plains card from your hand. If you don't, Furycalm Snarl enters the battlefield tapped. {T}: Add {R} or {W}.

({T}: Add {U}.)

({T}: Add {U}.)

{T}: Add {C}. {1}{R}, {T}: Create a 0/1 red Kobold creature token named Kobolds of Kher Keep.

({T}: Add {R}.)

({T}: Add {R}.)

Mystic Monastery enters the battlefield tapped. {T}: Add {U}, {R}, or {W}.

({T}: Add {W}.)

({T}: Add {W}.)

As Port Town enters the battlefield, you may reveal a Plains or Island card from your hand. If you don't, Port Town enters the battlefield tapped. {T}: Add {W} or {U}.

({T}: Add {W} or {U}.) Prairie Stream enters the battlefield tapped unless you control two or more basic lands.

{T}: Add {C}. {4}, {T}: Target creature can't be blocked this turn.

{T}: Add {C}. {T}: Add {U} or {R}. Shivan Reef deals 1 damage to you.

{1}, {T}: Add {W}{U}.

Temple of Enlightenment enters the battlefield tapped. When Temple of Enlightenment enters the battlefield, scry 1. {T}: Add {W} or {U}.

Temple of Epiphany enters the battlefield tapped. When Temple of Epiphany enters the battlefield, scry 1. {T}: Add {U} or {R}.

Temple of Triumph enters the battlefield tapped. When Temple of Triumph enters the battlefield, scry 1. {T}: Add {R} or {W}.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) Choose one or both — • Counter target spell. • Draw two cards, then discard a card.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) Prevent all damage that would be dealt by creatures this turn. You gain life equal to the damage prevented this way.

The next time a source of your choice would deal damage to you this turn, prevent that damage. If damage is prevented this way, Deflecting Palm deals that much damage to that source's controller.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) Target creature gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)

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

{T}: Add one mana of any color in your commander's color identity. Sacrifice Commander's Sphere: Draw a card.

{T}: Add one mana of any color. Crew 3 (Tap any number of creatures you control with total power 3 or more: This Vehicle becomes an artifact creature until end of turn.)

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) Flying, vigilance Whenever Flockchaser Phantom attacks, the next spell you cast this turn has convoke.

{T}: Add {C}. {T}: Roll the planar die. Activate only as a sorcery.

If you would roll one or more planar dice, instead roll that many planar dice plus one and ignore one. {T}: Add {C}{C}.

At the beginning of each opponent's end step, if that player controls more creatures than you, create a 1/1 white Soldier creature token. At the beginning of each opponent's end step, if that player controls more lands than you, you may search your library for a basic Plains card, put it onto the battlefield tapped, then shuffle.

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

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) Destroy target planeswalker that was activated this turn or tapped creature.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) Exile target attacking or blocking creature.

+1: Create three 1/1 white Soldier creature tokens. −3: Destroy all creatures with power 4 or greater. −7: You get an emblem with "Creatures you control get +2/+2 and have flying."

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) Destroy all nontoken creatures.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) Choose one — • Shatter the Source deals 6 damage to target creature, planeswalker, or battle. • Destroy target artifact.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) Stoke the Flames deals 4 damage to any target.

Exile target creature. Its controller gains life equal to its power.

Strive — This spell costs {1}{W} more to cast for each target beyond the first. Choose any number of target opponents. Create X 1/1 white Human Soldier creature tokens, where X is the number of creatures those opponents control.

Whenever you draw a card, you may pay {1}. If you do, put a +1/+1 counter on Nadir Kraken and create a 1/1 blue Tentacle creature token.

Exile target opponent's graveyard. For each creature card exiled this way, create a 1/1 colorless Spirit creature token.

Whenever you cast a noncreature spell, create a 1/1 colorless Servo artifact creature token. −2: Target artifact you control becomes a copy of another target artifact or creature you control until end of turn, except it's an artifact in addition to its other types.

Whenever Saint Traft and Rem Karolus becomes tapped, create a 1/1 red Human creature token if this is the first time this ability has resolved this turn. If it's the second time, create a 1/1 blue Spirit creature token with flying. If it's the third time, create a 4/4 white Angel creature token with flying. Whenever you cast a spell that has convoke, untap Saint Traft and Rem Karolus.

At the beginning of your upkeep, you lose 1 life and create a 1/1 colorless Phyrexian Mite artifact creature token with toxic 1 and "This creature can't block." Corrupted — As long as an opponent has three or more poison counters, creatures you control with toxic have lifelink.

Flying Whenever you draw a card, create a 1/1 blue and red Insect creature token with flying and haste. {2}{U}{R}: Draw a card, then discard a card. When The Locust God dies, return it to its owner's hand at the beginning of the next end step.

Whenever you cast a noncreature spell, create a 1/1 colorless Soldier artifact creature token.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) When Wildfire Awakener enters the battlefield, create X 1/1 red Elemental creature tokens with "Whenever this creature becomes tapped, it deals 1 damage to target player."

Vigilance, lifelink When Aragorn, King of Gondor enters the battlefield, you become the monarch. Whenever Aragorn attacks, up to one target creature can't block this turn. If you're the monarch, creatures can't block this turn.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) You may cast sorcery spells this turn as though they had flash. When you next cast an instant or sorcery spell this turn, copy that spell twice. You may choose new targets for the copies.

Target player gains 5 life, Inspired Ultimatum deals 5 damage to any target, then you draw five cards.

Convoke When Knight-Errant of Eos enters the battlefield, look at the top six cards of your library. You may reveal up to two creature cards with mana value X or less from among them, where X is the number of creatures that convoked Knight-Errant of Eos. Put the revealed cards into your hand, then shuffle.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) Draw two cards.

+1: You gain 2 life. Add {U}, {R}, or {W}. Spend this mana only to cast a noncreature spell. −2: Draw a card, then you may discard a card. When you discard a nonland card this way, Narset of the Ancient Way deals damage equal to that card's mana value to target creature or planeswalker. −6: You get an emblem with "Whenever you cast a noncreature spell, this emblem deals 2 damage to any target."

+1: Look at the top card of your library. If it's a noncreature, nonland card, you may reveal it and put it into your hand. −2: When you cast your next instant or sorcery spell from your hand this turn, it gains rebound. (Exile the spell as it resolves. At the beginning of your next upkeep, you may cast that card from exile without paying its mana cost.) −9: You get an emblem with "Your opponents can't cast noncreature spells."

Creatures you control have prowess. Whenever Narset, Enlightened Exile attacks, exile target noncreature, nonland card with mana value less than Narset's power from a graveyard and copy it. You may cast the copy without paying its mana cost.

Whenever you cast an instant or sorcery spell, you may tap two untapped creatures you control. If you do, draw a card. {3}{W}{W}: Creatures you control get +1/+1 and gain vigilance until end of turn.

Whenever Samite Herbalist becomes tapped, you gain 1 life and scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)

Equipped creature gets +1/-1. Whenever equipped creature dies, draw two cards. Equip {1}

Instant, sorcery, and Dragon spells you control can't be countered. Whenever you cast an instant or sorcery spell from your hand, if Taigam, Ojutai Master attacked this turn, that spell gains rebound. (Exile the spell as it resolves. At the beginning of your next upkeep, you may cast that card from exile without paying its mana cost.)

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) Draw X cards.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) Flying, vigilance When Zephyr Singer enters the battlefield, put a flying counter on each creature that convoked it.

Flying, vigilance, haste Whenever Aurelia, the Warleader attacks for the first time each turn, untap all creatures you control. After this phase, there is an additional combat phase.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) At the beginning of each end step, if you created a token this turn, draw a card.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) If a source you control would deal damage to a permanent or player, it deals triple that damage instead.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) Any number of target nonland permanents you control phase out. (Treat them and anything attached to them as though they don't exist until your next turn.)

{U/R}{U/R}, {T}, Tap two untapped red creatures you control: Crackleburr deals 3 damage to any target. {U/R}{U/R}, {Q}, Untap two tapped blue creatures you control: Return target creature to its owner's hand. ({Q} is the untap symbol.)

Tap any number of untapped creatures you control. Create a 4/4 white Angel creature token with flying for each creature tapped this way.

Flying Untap all creatures you control during each other player's untap step.

As an additional cost to cast this spell, you may tap any number of untapped creatures you control. This spell costs {1} less to cast for each creature tapped this way. Explosive Singularity deals 10 damage to any target.

Untap all creatures you control. They gain flying and double strike until end of turn.

{W}, {T}, Untap a tapped creature you control: Create a 1/1 green and white Citizen creature token. {W}{W}, {T}, Untap two tapped creatures you control: Draw a card. {W}{W}{W}{W}{W}, {T}, Untap fifteen tapped creatures you control: You win the game.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) Ward {3} When Interdisciplinary Mascot enters the battlefield, look at the top four cards of your library. Put one of them into your hand and the rest on the bottom of your library in a random order.

Whenever you cast a noncreature spell, creatures you control get +1/+1 until end of turn. Untap those creatures. Whenever you cast a noncreature spell, you may draw a card. If you do, discard a card.

When Prosperous Partnership enters the battlefield, create two 1/1 green and white Citizen creature tokens. Tap three untapped creatures you control: Create a Treasure token.

Whenever Stonybrook Schoolmaster becomes tapped, you may create a 1/1 blue Merfolk Wizard creature token.

Whenever Surgespanner becomes tapped, you may pay {1}{U}. If you do, return target permanent to its owner's hand.