Whenever you cast a spell, you gain 1 life for each spell you've cast this turn. Pay 50 life: Aetherflux Reservoir deals 50 damage to any target.

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

Sacrifice a creature: Add {C}{C}.

As Cloud Key enters the battlefield, choose artifact, creature, enchantment, instant, or sorcery. Spells you cast of the chosen type cost {1} less to cast.

Whenever a nonartifact permanent enters the battlefield under your control, you may return another permanent you control that shares a permanent type with it to its owner's hand.

Spells cost {1} less to cast.

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.

At the beginning of your upkeep, flip a coin. If you lose the flip, Mana Crypt deals 3 damage to you. {T}: Add {C}{C}.

Creatures you control are every creature type. The same is true for creature spells you control and creature cards you own that aren't on the battlefield. {3}, {T}: Create a 2/2 blue Shapeshifter creature token with changeling. (It is every creature type.)

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

Equipped creature gets +3/+1. Whenever equipped creature dies, return that card to the battlefield under your control if it's a Samurai card. When Oathkeeper, Takeno's Daisho is put into a graveyard from the battlefield, exile equipped creature. Equip {2}

White creature spells you cast cost {1} less to cast. Whenever you cast a creature spell, create a 1/1 white Warrior creature token with vigilance.

White spells you cast cost {1} less to cast.

Imprint — When Semblance Anvil enters the battlefield, you may exile a nonland card from your hand. Spells you cast that share a card type with the exiled card cost {2} less to cast.

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

Players can't activate planeswalkers' loyalty abilities. At the beginning of your draw step, draw an additional card. Spells you cast cost {1} less to cast. Creatures you control get +1/+1.

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

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

When Alabaster Host Intercessor enters the battlefield, exile target creature an opponent controls until Alabaster Host Intercessor leaves the battlefield. Plainscycling {2} ({2}, Discard this card: Search your library for a Plains card, reveal it, put it into your hand, then shuffle.)

Flying Bushido 1 (Whenever this creature blocks or becomes blocked, it gets +1/+1 until end of turn.)

Changeling (This card is every creature type.) As Bloodline Pretender enters the battlefield, choose a creature type. Whenever another creature of the chosen type enters the battlefield under your control, put a +1/+1 counter on Bloodline Pretender.

Bushido 1 (Whenever this creature blocks or becomes blocked, it gets +1/+1 until end of turn.)

Whenever a Samurai or Warrior you control attacks alone, it gets +1/+1 until end of turn.

Whenever an opponent casts their first noncreature spell each turn, draw a card unless that player pays {X}, where X is Esper Sentinel's power.

Double strike Whenever you cast a creature spell, create a 4/4 black Zombie Warrior creature token with vigilance. When God-Eternal Oketra dies or is put into exile from the battlefield, you may put it into its owner's library third from the top.

Protection from black Bushido 1 (Whenever this creature blocks or becomes blocked, it gets +1/+1 until end of turn.)

Whenever a Samurai or Warrior you control attacks alone, tap target creature you don't control.

Changeling (This card is every creature type.)

Bushido 1 (Whenever this creature blocks or becomes blocked, it gets +1/+1 until end of turn.) Whenever a Samurai you control dies, you may put a +1/+1 counter on Indebted Samurai.

Bushido 2 (Whenever this creature blocks or becomes blocked, it gets +2/+2 until end of turn.)

Whenever Ironsoul Enforcer or a commander you control attacks alone, return target artifact card from your graveyard to the battlefield.

First strike Bushido 1 (Whenever this creature blocks or becomes blocked, it gets +1/+1 until end of turn.)

Bushido 1 (Whenever this creature blocks or becomes blocked, it gets +1/+1 until end of turn.) As long as you control a legendary Samurai, Konda's Hatamoto gets +1/+2 and has vigilance. (Attacking doesn't cause this creature to tap.)

Vigilance, indestructible Bushido 5 (Whenever this creature blocks or becomes blocked, it gets +5/+5 until end of turn.)

Whenever another creature with power 2 or less enters the battlefield under your control, you may pay {1}. If you do, draw a card.

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.

Flying Bushido 1 (Whenever this creature blocks or becomes blocked, it gets +1/+1 until end of turn.)

Bushido 1 (Whenever this creature blocks or becomes blocked, it gets +1/+1 until end of turn.) Whenever Nagao, Bound by Honor attacks, Samurai creatures you control get +1/+1 until end of turn.

Vigilance Whenever a Samurai or Warrior you control attacks alone, you may cast target enchantment card from your graveyard this turn.

Defender (This creature can't attack.) Bushido 1 (Whenever this creature blocks or becomes blocked, it gets +1/+1 until end of turn.) {T}: The next time a source of your choice would deal damage this turn, that damage is dealt to Opal-Eye, Konda's Yojimbo instead. {1}{W}: Prevent the next 1 damage that would be dealt to Opal-Eye this turn.

Bushido 1 (Whenever this creature blocks or becomes blocked, it gets +1/+1 until end of turn.) If a permanent would be put into a graveyard, exile it instead.

Whenever a Samurai or Warrior you control attacks alone, it gains lifelink until end of turn. Sacrifice Selfless Samurai: Another target creature you control gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)

Bushido 1 (Whenever this creature blocks or becomes blocked, it gets +1/+1 until end of turn.) {1}{W}, {T}: Put a training counter on target creature. That creature gains bushido 1 and becomes a Samurai in addition to its other creature types. Activate only as a sorcery.

Vigilance Whenever Sun Titan enters the battlefield or attacks, you may return target permanent card with mana value 3 or less from your graveyard to the battlefield.

Vigilance Channel — {2}, Discard Sunblade Samurai: Search your library for a basic Plains card, reveal it, put it into your hand, then shuffle. You gain 2 life.

Whenever a creature enters the battlefield under your control, put a +1/+1 counter on each creature you control.

Play with your hand revealed. If you would draw a card, reveal the top card of your library instead. If it's a creature card, put it into your graveyard. Otherwise, draw a card. Whenever a creature is put into your graveyard from the battlefield, return it to your hand.

At the beginning of your upkeep, if an opponent controls more lands than you, you may search your library for up to three basic land cards, reveal them, put them into your hand, then shuffle.

Whenever an opponent draws a card, that player may pay {2}. If the player doesn't, you create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")

At the beginning of each end step, draw a card for each opponent who drew two or more cards this turn, then create a Treasure token for each opponent who had two or more lands enter the battlefield under their control this turn.

Search your library for an artifact or enchantment card, reveal it, then shuffle and put that card on top.

Destroy target permanent. Its controller creates a 3/3 green Elephant creature token.

Counter target spell unless its controller pays {1}.

Exile target creature. Its controller may search their library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Your opponents can't cast spells this turn.

Destroy target nonland permanent. Its controller creates a 1/1 white Human creature token.

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

{T}: Add {C}. {2}, {T}, Sacrifice Buried Ruin: Return target artifact card from your graveyard to your hand.

{T}: Add {W}. Channel — {2}{W}, Discard Eiganjo, Seat of the Empire: It deals 4 damage to target attacking or blocking creature. This ability costs {1} less to activate for each legendary creature you control.

Emeria, the Sky Ruin enters the battlefield tapped. At the beginning of your upkeep, if you control seven or more Plains, you may return target creature card from your graveyard to the battlefield. {T}: Add {W}.

At the beginning of your upkeep, if you control three or more artifacts, you gain 1 life. {T}: Add {C}. {4}, {T}, Sacrifice Inventors' Fair: Search your library for an artifact card, reveal it, put it into your hand, then shuffle. Activate only if you control three or more artifacts.

Minas Tirith enters the battlefield tapped unless you control a legendary creature. {T}: Add {W}. {1}{W}, {T}: Draw a card. Activate only if you attacked with two or more creatures this turn.

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

({T}: Add {W}.)

Choose one or more — • Exile all artifacts. • Exile all creatures. • Exile all enchantments. • Exile all graveyards.

Search your library for an enchantment card, reveal it, put it into your hand, then shuffle.

Search your library for a snow permanent card, a legendary card, or a Saga card, reveal it, put it into your hand, then shuffle. You gain 1 life for each {S} spent to cast this spell. ({S} is mana from a snow source.)