The Card Yard

Enchantment — Aura

Enchant creature Enchanted creature can't attack or block. {5}, Sacrifice this Aura: Exile enchanted creature. You create a 1/1 black Ninja creature token. Activate only as a sorcery.

Enchantment — Room // Enchantment — Room

Land

{T}: Add {C}. {B}, {T}: Put target Zombie card from your graveyard on top of your library.

Artifact

As this artifact enters, choose a creature type. Creature spells of the chosen type cost {2} less to cast.

Artifact Creature — Utrom Robot Scientist

When this creature enters, tap up to one target creature and put a stun counter on it. (If a permanent with a stun counter would become untapped, remove one from it instead.)

Creature — Dragon

Flying Whenever a Dragon you control attacks, create a 6/6 red Dragon creature token with flying.

Legendary Creature — Elder Demon

Flying, lifelink Ward—Sacrifice three nonland permanents. If a card you didn't control would be put into an opponent's graveyard from anywhere, exile it instead. During your turn, you may play cards exiled with Valgavoth. If you cast a spell this way, pay life equal to its mana value rather than pay its mana cost.

Creature — Lizard Warlock

If a Lizard, Mouse, Otter, or Raccoon you control would deal damage to a permanent or player, it deals that much damage plus 1 instead.

Creature — Frog Warrior

Trample Whenever another Frog, Rabbit, Raccoon, or Squirrel you control enters, put a +1/+1 counter on this creature.

Instant

Gift a Food (You may promise an opponent a gift as you cast this spell. If you do, they create a Food token before its other effects. It's an artifact with "{2}, {T}, Sacrifice this token: You gain 3 life.") Creatures you control get +2/+0 until end of turn. If the gift was promised, target creature you control gains first strike until end of turn.

Creature — Vedalken Wizard

Whenever you cast an artifact spell, draw a card.

Artifact

You may cast spells as though they had flash.

Creature — Mouse Soldier

Valiant — Whenever this creature becomes the target of a spell or ability you control for the first time each turn, it gets +1/+0 and gains first strike until end of turn. Scry 1. (Look at the top card of your library. You may put that card on the bottom.)

Artifact

Whenever a player casts a spell, if no mana was spent to cast it, counter that spell. {1}, {T}, Sacrifice this artifact: Draw a card.

Creature — Elemental Incarnation

When this creature enters, if {R}{R} was spent to cast it, this creature deals 3 damage to any target. When this creature enters, if {G}{G} was spent to cast it, search your library for a land card, reveal it, put it into your hand, then shuffle. You gain 2 life. Evoke {R/G}{R/G}

Sorcery

Choose two target creature cards in your graveyard. Sacrifice a creature. If you do, return the chosen cards to the battlefield tapped.

Creature — Squirrel Druid

When this creature enters or dies, create a Food token. (It's an artifact with "{2}, {T}, Sacrifice this token: You gain 3 life.")

Creature — Eldrazi

Your opponents can't cast spells with even mana values. (Zero is even.) Your opponents can't block with creatures with even mana values.

Artifact Creature — Golem

Whenever this creature becomes tapped, you may discard a card. If you do, draw a card.

Legendary Creature — Rat Rogue

Ward {2} If a creature an opponent controls would die, exile it instead. At the beginning of each end step, create X 1/1 black Rat creature tokens with "This token gets +1/+1 for each other Rat you control," where X is the number of creatures that were exiled under your opponents' control this turn.

Sorcery

Descend 8 — Choose one. If there are eight or more permanent cards in your graveyard as you cast this spell, choose one or more instead. • Return target nonland permanent to its owner's hand. • Target opponent discards a card. • Look at the top three cards of your library. Put one of them into your hand and the rest into your graveyard.

Sorcery

Target creature you control deals damage equal to its power to each other creature. Until end of turn, whenever a creature you control dies, exile the top card of your library. You may play it until the end of your next turn.

Creature — Raccoon Bard

Whenever you expend 4, put a +1/+1 counter on this creature. (You expend 4 as you spend your fourth total mana to cast spells during a turn.) {T}: Add {R} or {G}.

Creature — Rabbit Cleric

{3}{W}: Creatures you control get +1/+1 until end of turn.

Creature — Zombie Goblin Wizard

Pay 1 life, Sacrifice another creature: Create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")

Enchantment — Aura

Enchant creature When this Aura enters, target creature an opponent controls can't block this turn. Enchanted creature gets +1/+1 and has haste.

Land

{T}: Add {C}. {T}, Sacrifice this land: Destroy target nonbasic land.

Creature — Frog Soldier

Whenever this creature attacks, if another creature entered the battlefield under your control this turn, this creature gains flying until end of turn.

Creature — Bat Cleric

Flying, vigilance Whenever you gain or lose life during your turn, this creature gets +1/+0 until end of turn.

Creature — Human Pirate

When this creature enters, if you control an artifact, tap target artifact or creature an opponent controls and put a stun counter on it. (If a permanent with a stun counter would become untapped, remove one from it instead.)

Sorcery

Gift a card (You may promise an opponent a gift as you cast this spell. If you do, they draw a card before its other effects.) Destroy target artifact or enchantment. If the gift was promised, instead destroy two target artifacts and/or enchantments.

Creature — Cat Spirit Avatar

Trample Whenever this creature enters or attacks, you may sacrifice a token or a land. If you do, you gain 3 life. Disappear — At the beginning of your end step, if a permanent left the battlefield under your control this turn, draw a card.

Creature — Mouse Citizen

Valiant — Whenever this creature becomes the target of a spell or ability you control for the first time each turn, you may discard a card. If you do, draw a card.

Creature — Rat Warlock

When this creature enters, mill three cards. When you do, target creature an opponent controls gets -X/-X until end of turn, where X is the greatest mana value among cards in your graveyard.

Sorcery

Gift a card (You may promise an opponent a gift as you cast this spell. If you do, they draw a card before its other effects.) Wildfire Howl deals 2 damage to each creature. If the gift was promised, instead Wildfire Howl deals 1 damage to any target and 2 damage to each creature.

Creature — Orc Shaman Sorcerer

The first spell you cast from exile each turn has cascade. (When you cast your first spell from exile, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.)

Sorcery

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.) For each player, you choose a creature that player controls. Then each player sacrifices all other creatures they control that don't share a creature type with the chosen creature they control.

Sorcery

Destroy all creatures. They can't be regenerated.

Instant

Choose one — • Break Their Chains — Destroy target artifact. • Interrogate Them — Exile the top three cards of target opponent's library. Choose one of them. Until the end of your next turn, you may play that card, and you may spend mana as though it were mana of any color to cast it.

Legendary Creature — Human Cleric

Grand Summon — {T}: Add one mana of any color. When you next cast a creature spell this turn, that creature enters with two additional +1/+1 counters on it. Whenever another permanent you control is put into a graveyard from the battlefield, if it had one or more counters on it, you may put that number of +1/+1 counters on target creature.

Legendary Creature — Horror

Hive Mind — Whenever a player mills one or more creature cards, you create a 1/1 black Horror creature token. {1}, {T}: Target player mills three cards. Choose a Background (You can have a Background as a second commander.)

Legendary Creature — Dinosaur Soldier

Reach, trample When Zog enters, target creature can't block this turn. Mountaincycling {2} ({2}, Discard this card: Search your library for a Mountain card, reveal it, put it into your hand, then shuffle.)