Collective 365

Creature — Human Wizard

When this creature enters, you may search your library for an instant or sorcery card with mana value 1, reveal it, put it into your hand, then shuffle.

Creature — Vampire Assassin

Flying Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)

Creature — Spirit

Wither (This deals damage to creatures in the form of -1/-1 counters.) At the beginning of your upkeep, put a -1/-1 counter on each nonblack creature.

Artifact

{T}: Add {U}. {2}{U}: Put an hour counter on this artifact. At the beginning of each upkeep, put an hour counter on this artifact. When the twelfth hour counter is put on this artifact, shuffle your hand and graveyard into your library, then draw seven cards. Exile this artifact.

Sorcery

Create three 1/1 red Gremlin creature tokens. Gremlins you control gain menace, lifelink, and haste until end of turn. (A creature with menace can't be blocked except by two or more creatures.)

Enchantment

Raid — At the beginning of your end step, if you attacked this turn, create a Food token. (It's an artifact with "{2}, {T}, Sacrifice this token: You gain 3 life.") {2}{B}, Sacrifice this enchantment: Target opponent loses X life, where X is the amount of life you gained this turn.

Instant

Mill four cards, then you may return a permanent card from among them to your hand. (To mill four cards, put the top four cards of your library into your graveyard.)

Instant

Target creature gets +2/+2 until end of turn. If you cast this spell during your main phase, that creature gets +4/+4 until end of turn instead.

Enchantment

At the beginning of combat on your turn, target creature you control gets +2/+0 and gains vigilance until end of turn.

Creature — Insect Druid

Landfall — Whenever a land you control enters, double the power of target creature you control until end of turn. Warp {2}{G} (You may cast this card from your hand for its warp cost. Exile this creature at the beginning of the next end step, then you may cast it from exile on a later turn.)

Sorcery

Search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle. Cycling {2} ({2}, Discard this card: Draw a card.)

Creature — Beast

Mutate {2}{G} (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.) Whenever this creature mutates, search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

Legendary Creature — Dragon Spirit

Flying, ward {2} Whenever another nontoken Dragon you control enters, create a token that's a copy of it, except the token isn't legendary.

Legendary Creature — Human Cleric

Mikaeus enters with X +1/+1 counters on it. {T}: Put a +1/+1 counter on Mikaeus. {T}, Remove a +1/+1 counter from Mikaeus: Put a +1/+1 counter on each other creature you control.

Legendary Creature — Zombie Cleric

Intimidate (This creature can't be blocked except by artifact creatures and/or creatures that share a color with it.) Whenever a Human deals damage to you, destroy it. Other non-Human creatures you control get +1/+1 and have undying. (When a creature with undying dies, if it had no +1/+1 counters on it, return it to the battlefield under its owner's control with a +1/+1 counter on it.)

Legendary Creature — Mutant Ninja Turtle

Whenever you put a counter on a creature you control, draw a card. This ability triggers only once each turn.

Enchantment — Aura

Flash Enchant creature When this Aura enters, enchanted creature gains first strike until end of turn. Enchanted creature gets +1/+0.

Artifact Creature — Construct

{T}, Mill a card: Add {C}. (To mill a card, put the top card of your library into your graveyard.)

Sorcery

Create an X/X green Ooze creature token, where X is the greatest power among creatures you control.

Legendary Land

{T}: Add {U}. {U}, {T}: Untap target legendary permanent.

Legendary Land

Minas Tirith enters 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.

Sorcery

Each opponent reveals cards from the top of their library until they reveal X land cards, then puts all cards revealed this way into their graveyard. X can't be 0.

Sorcery

Draw X cards.

Artifact

{T}: Add {C}. {1}, {T}, Sacrifice this artifact: Draw a card.

Sorcery

Target player discards X cards at random.

Sorcery

Draw X cards. Then you may put a permanent card with mana value X or less from your hand onto the battlefield tapped.

Enchantment

Whenever an opponent casts their first spell each turn, that player exiles the top card of their library. If it's a nonland card, you may cast it without paying its mana cost.

Artifact

Whenever an opponent draws a card, you may pay {1}. If you do, draw a card.

Instant — Trap

If an opponent cast three or more spells this turn, you may pay {0} rather than pay this spell's mana cost. Exile any number of target spells.

Artifact

Whenever an opponent loses life, that player mills that many cards. (Damage causes loss of life.)

Artifact — Vehicle

Flying Whenever this Vehicle becomes crewed for the first time each turn, until end of turn, this Vehicle becomes a copy of target nonlegendary creature that crewed it this turn, except it's 4/3, it's a Vehicle artifact in addition to its other types, and it has flying. Crew 1

Creature — Dragon

Flying Whenever this creature deals combat damage to an opponent, target player mills four cards.

Legendary Artifact

{4}, {T}, Sacrifice Mindslaver: You control target player during that player's next turn. (You see all cards that player could see and make all decisions for them.)

Artifact Creature — Assembly-Worker

{T}: You gain 1 life. If you control creatures named Power Plant Worker and Tower Worker, you gain 3 life instead.

Creature — Bird

Flying, vigilance When this creature dies, target creature you control explores. (Reveal the top card of your library. Put that card into your hand if it's a land. Otherwise, put a +1/+1 counter on that creature, then put the card back or put it into your graveyard.)

Enchantment — Aura

Enchant nonland permanent Enchanted permanent is a Treasure artifact with "{T}, Sacrifice this artifact: Add one mana of any color," and it loses all other abilities. (If it was a creature, it's no longer a creature.)

Enchantment — Aura

Flash Enchant creature When enchanted creature dies, return that card to the battlefield under your control.

Instant

Counter target spell with mana value 1 or less.