Flying
When this creature enters, choose a creature card in your hand. It perpetually gains flying.

First strike
When this creature enters, put a +1/+1 counter on each other artifact creature you control.
Modular 2 (This creature enters with two +1/+1 counters on it. When it dies, you may put its +1/+1 counters on target artifact creature.)

Discard a card, then draw two cards.

Fiery Temper deals 3 damage to any target.
Madness (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Outlast (, : Put a +1/+1 counter on this creature. Outlast only as a sorcery.)
Each creature you control with a +1/+1 counter on it has flying.

When this creature enters, you may search your library for a creature card with mana value 1 or less, reveal it, put it into your hand, then shuffle.
Sacrifice this creature: Your opponents can't cast noncreature spells this turn.

Create three 1/1 red Goblin creature tokens.

Sliver creatures you control have menace. (They can't be blocked except by two or more creatures.)

Flying
: Another target creature gains flying until end of turn.
Channel — , Discard this card: X target creatures gain flying until end of turn.

Exile the top card of your library. During your next turn, you may play that card.
Storm (When you cast this spell, copy it for each spell cast before it this turn.)

Unblocked attacking Ninjas you control have lifelink.

, : Conjure a random card from Tome of the Infinite's spellbook into your hand. It perpetually gains "You may spend mana as though it were mana of any color to cast this spell."

Enchant creature
When this Aura enters, if you control a token, tap enchanted creature, then scry 2.
Enchanted creature doesn't untap during its controller's untap step.

Look at the top four cards of your library. Put one of them into your hand and the rest into your graveyard. You gain life equal to the greatest power among creature cards put into your graveyard this way.

Whenever a nontoken creature you control dies, investigate. (Create a Clue token. It's an artifact with ", Sacrifice this token: Draw a card.")
Whenever you sacrifice a Clue, create a 1/1 white Human Soldier creature token.

At the beginning of your upkeep, you may sacrifice a token. If you do, put an acorn counter on this artifact.
Squirrels you control get +1/+1 for each acorn counter on this artifact.
, : Create a 1/1 green Squirrel creature token.

When this creature enters, choose one —
• Put a +1/+1 counter on this creature.
• Create a 1/1 white Spirit creature token with flying.

This creature can't be blocked.
Evolve (Whenever a creature you control enters, if that creature has greater power or toughness than this creature, put a +1/+1 counter on this creature.)

When this creature enters, create two 1/1 red Goblin creature tokens.
Sacrifice a Goblin: Target player loses 1 life and you gain 1 life.

When this creature dies, reveal cards from the top of your library until you reveal a nonland card with mana value 3 or less. You may cast that card without paying its mana cost. Put all revealed cards not cast this way on the bottom of your library in a random order.

Enchant creature
Enchanted creature gets +2/+2 and has flying.
: Enchanted creature gets +1/+0 until end of turn.

Flying
: Scion of Shiv perpetually gets +1/+0.

Ninjutsu (, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)
Whenever this creature deals combat damage to a player, you may draw a card.

Changeling (This card is every creature type.)
When this creature enters, create a 2/2 colorless Shapeshifter creature token with changeling.

Haste
, Discard a card: Draw a card.

Discard a card: This creature gets +1/+1 until end of turn.
Madness (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Flying, lifelink

Flying
Whenever this creature blocks, it gets +0/+2 until end of turn.

Vigilance
Enrage — Whenever this creature is dealt damage, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Reach
Delirium — Whenever this creature attacks, if there are four or more card types among cards in your graveyard, this creature deals 1 damage to each creature defending player controls.

+1: Dragon cards in your hand perpetually gain "This spell costs less to cast," and "You may pay rather than pay this spell's mana cost, where X is its mana value."
+1: Conjure a card named Shivan Dragon into your hand.
−2: Sarkhan, Wanderer to Shiv deals 3 damage to target creature.

Sliver creatures you control get +2/+0.

Discard a card: You may cast a creature spell from your graveyard this turn. Activate only once each turn.
Whenever a nontoken creature you control enters, if you didn't cast it from your hand, it gains haste until your next turn.

Flying
Hellbent — This creature has lifelink as long as you have no cards in hand.
, Discard a card: This creature gains indestructible until end of turn. Tap it.

Flying
As long as this card is in your graveyard and you control an Island, creatures you control have flying.

When this creature enters, return target card from your graveyard to your hand.
Eternalize (, Exile this card from your graveyard: Create a token that's a copy of it, except it's a 4/4 black Zombie Human Shaman with no mana cost. Eternalize only as a sorcery.)