Spells and abilities your opponents control can't cause their controller to search their library. −1: Target player mills four cards. Then exile each opponent's graveyard.

Flying Project Image — When Astral Dragon enters the battlefield, create two tokens that are copies of target noncreature permanent, except they're 3/3 Dragon creatures in addition to their other types, and they have flying.

Flying Whenever a Dragon you control dies while Boneyard Scourge is in your graveyard, you may pay {1}{B}. If you do, return Boneyard Scourge from your graveyard to the battlefield.

Flying At the beginning of your end step, exile the top card of each opponent's library. You may play those cards for as long as they remain exiled. If you cast a spell this way, you may spend mana as though it were mana of any color to cast it. Whenever a nonland permanent an opponent owns enters the battlefield under your control, they lose life equal to its mana value.

{T}: Add {C}. {1}, {T}: Put a storage counter on Crucible of the Spirit Dragon. {T}, Remove X storage counters from Crucible of the Spirit Dragon: Add X mana in any combination of colors. Spend this mana only to cast Dragon spells or activate abilities of Dragons.

Choose one — • Destroy all Dragon creatures. • Destroy all non-Dragon creatures.

Add {B}{B}{B}.

Flying When Deathbringer Regent enters the battlefield, if you cast it from your hand and there are five or more other creatures on the battlefield, destroy all other creatures.

Whenever a Dragon enters the battlefield under your control, put a gold counter on Dragon's Hoard. {T}, Remove a gold counter from Dragon's Hoard: Draw a card. {T}: Add one mana of any color.

Flying, deathtouch When Dragonlord Silumgar enters the battlefield, gain control of target creature or planeswalker for as long as you control Dragonlord Silumgar.

Drowned Catacomb enters the battlefield tapped unless you control an Island or a Swamp. {T}: Add {U} or {B}.

Flash Flying Ebondeath, Dracolich enters the battlefield tapped. You may cast Ebondeath, Dracolich from your graveyard if a creature not named Ebondeath, Dracolich died this turn.

Return target creature card from your graveyard to the battlefield. If it's a Dragon, put two +1/+1 counters on it.

Choose a creature type. Return up to two creature cards of that type from your graveyard to the battlefield. If this spell was foretold, return all creature cards of that type from your graveyard to the battlefield instead. Foretell {5}{B}{B} (During your turn, you may pay {2} and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)

{T}: Add {C}. {T}: Add one mana of any color. Spend this mana only to cast a Dragon creature spell. {2}, {T}, Sacrifice Haven of the Spirit Dragon: Return target Dragon creature card or Ugin planeswalker card from your graveyard to your hand.

Flying When Icefall Regent enters the battlefield, tap target creature an opponent controls. That creature doesn't untap during its controller's untap step for as long as you control Icefall Regent. Spells your opponents cast that target Icefall Regent cost {2} more to cast.

Planeswalkers you control have "[0]: Proliferate" and "[−12]: Take an extra turn after this one." Whenever you cast a noncreature spell, choose a counter on target permanent. Put an additional counter of that kind on that permanent.

Flying Iymrith, Desert Doom has ward {4} as long as it's untapped. Whenever Iymrith deals combat damage to a player, draw a card. Then if you have fewer than three cards in hand, draw cards equal to the difference.

Flying, menace When Junji, the Midnight Sky dies, choose one — • Each opponent discards two cards and loses 2 life. • Put target non-Dragon creature card from a graveyard onto the battlefield under your control. You lose 2 life.

Flying, ward {3} When Kairi, the Swirling Sky dies, choose one — • Return any number of target nonland permanents with total mana value 6 or less to their owners' hands. • Mill six cards, then return up to two instant and/or sorcery cards from your graveyard to your hand.

Flying When Keiga, the Tide Star dies, gain control of target creature.

Cumulative upkeep {1} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.) Whenever an opponent casts a noncreature spell, you may draw a card unless that player pays {4}.

Creatures can't attack you unless their controller pays {2} for each creature they control that's attacking you.

You have no maximum hand size. {T}: Add {C}.

You may cast Dragon spells and artifact spells as though they had flash. Choose a Background (You can have a Background as a second commander.)

Shipwreck Marsh enters the battlefield tapped unless you control two or more other lands. {T}: Add {U} or {B}.

Flying, hexproof Whenever a Dragon you control attacks, creatures defending player controls get -1/-1 until end of turn.

Flying Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.) {B}: Skithiryx, the Blight Dragon gains haste until end of turn. {B}{B}: Regenerate Skithiryx.

Enchant planeswalker Enchanted planeswalker has "[−12]: You get an emblem with 'You may activate loyalty abilities of planeswalkers you control on any player's turn any time you could cast an instant.'" Whenever you draw a card, put a loyalty counter on enchanted planeswalker.

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.

Flying Whenever Ancient Brass Dragon deals combat damage to a player, roll a d20. When you do, put any number of target creature cards with total mana value X or less from graveyards onto the battlefield under your control, where X is the result.

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

Draw three cards, then put two cards from your hand on top of your library in any order.

Counter target spell.

Return target nonland permanent you don't control to its owner's hand. Overload {6}{U} (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")

If you control a commander, you may cast this spell without paying its mana cost. Exile target creature.

Search your library for a card, put that card into your hand, then shuffle.

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

This spell costs {2} less to cast if you control a Dragon. Draw three cards.

{1}, {T}: Draw a card, then discard a card.

Look at the top three cards of your library. Put one of them into your hand and the rest on the bottom of your library in any order. Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Destroy target creature or enchantment an opponent controls. You lose life equal to that permanent's mana value.

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

If you control a commander, you may cast this spell without paying its mana cost. Counter target noncreature spell.

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.

Flying When Hidetsugu and Kairi enters the battlefield, draw three cards, then put two cards from your hand on top of your library in any order. When Hidetsugu and Kairi dies, exile the top card of your library. Target opponent loses life equal to its mana value. If it's an instant or sorcery card, you may cast it without paying its mana cost.

Convoke Flying When Hoarding Broodlord enters the battlefield, search your library for a card, exile it face down, then shuffle. For as long as that card remains exiled, you may play it. Spells you cast from exile have convoke.

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.

{T}: Add {U}. When you spend this mana to cast a Dragon creature spell, scry 2. (Look at the top two cards of your library, then put any number of them on the bottom of your library and the rest on top in any order.)

Equipped creature has haste and shroud. (It can't be the target of spells or abilities.) Equip {0}

Enchant planeswalker Enchanted planeswalker has "[−8]: Put all creature cards from all graveyards onto the battlefield under your control." Whenever a creature deals damage to enchanted planeswalker, destroy that creature.

Counter target spell. At the beginning of your next main phase, add an amount of {C} equal to that spell's mana value.

{T}: Add {C}. {1}, {T}, Sacrifice Mind Stone: Draw a card.

As Reflections of Littjara enters the battlefield, choose a creature type. Whenever you cast a spell of the chosen type, copy that spell. (A copy of a permanent spell becomes a token.)

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

Proliferate, then choose any number of permanents you control that had a counter put on them this way. Those permanents phase out. (To proliferate, choose any number of permanents and/or players, then give each another counter of each kind already there. Treat phased-out permanents and anything attached to them as though they don't exist until their controller's next turn.)

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

You may have Spark Double enter the battlefield as a copy of a creature or planeswalker you control, except it enters with an additional +1/+1 counter on it if it's a creature, it enters with an additional loyalty counter on it if it's a planeswalker, and it isn't legendary.

Flying {2}: Steel Hellkite gets +1/+0 until end of turn. {X}: Destroy each nonland permanent with mana value X whose controller was dealt combat damage by Steel Hellkite this turn. Activate only once each turn.

{T}: Add {C}. {T}: Add {U} or {B}. Talisman of Dominance deals 1 damage to you.

As an additional cost to cast this spell, pay X life. All creatures get -X/-X until end of turn.

As Urza's Incubator enters the battlefield, choose a creature type. Creature spells of the chosen type cost {2} less to cast.

Search your library for a card, then shuffle and put that card on top. You lose 2 life.

Bojuka Bog enters the battlefield tapped. When Bojuka Bog enters the battlefield, exile target player's graveyard. {T}: Add {B}.

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

({T}: Add {U}.)

({T}: Add {U} or {B}.) Sunken Hollow enters the battlefield tapped unless you control two or more basic lands.

({T}: Add {B}.)

Flying Whenever Ancient Silver Dragon deals combat damage to a player, roll a d20. Draw cards equal to the result. You have no maximum hand size for the rest of the game.

{2}, {T}: Add {B} for each Swamp you control.

Destroy all creatures. They can't be regenerated.

Flying When Kokusho, the Evening Star dies, each opponent loses 5 life. You gain life equal to the life lost this way.

Morphic Pool enters the battlefield tapped unless you have two or more opponents. {T}: Add {U} or {B}.

{T}: Add {U}. Channel — {3}{U}, Discard Otawara, Soaring City: Return target artifact, creature, enchantment, or planeswalker to its owner's hand. This ability costs {1} less to activate for each legendary creature you control.

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

{T}: Add {B}. Channel — {3}{B}, Discard Takenuma, Abandoned Mire: Mill three cards, then return a creature or planeswalker card from your graveyard to your hand. This ability costs {1} less to activate for each legendary creature you control.

+2: Ugin, the Spirit Dragon deals 3 damage to any target. −X: Exile each permanent with mana value X or less that's one or more colors. −10: You gain 7 life, draw seven cards, then put up to seven permanent cards from your hand onto the battlefield.

Each land is a Swamp in addition to its other land types.

As Cavern of Souls 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, and that spell can't be countered.