When this creature enters, create a 1/1 green Squirrel creature token and a 0/3 blue Crab creature token.
When this creature dies, create a token that's a copy of target token you control.

Draw cards equal to the greatest mana value among permanents you control.

Flying
When this creature enters, draw a card, then discard a card.

Cascade (When you cast this spell, 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.)
Spells you cast with mana value 6 or greater have cascade.

Enchant instant card in a graveyard
Whenever you cast a sorcery spell, copy the enchanted instant card. You may cast the copy without paying its mana cost. If you do, exile the enchanted card and attach this Aura to another instant card in a graveyard.

: Choose a card name that hasn't been chosen from among Disenchant, Braingeyser, Terror, Shivan Dragon, Regrowth, and Black Lotus. Create a copy of the card with the chosen name. You may cast the copy. (You still pay its costs.)

When this creature enters, return target creature card from your graveyard to the battlefield. You lose life equal to that card's mana value.

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for .)
When this creature enters, create two 1/1 colorless Thopter artifact creature tokens with flying.

, : Put a divinity counter on target permanent other than That Which Was Taken.
Each permanent with a divinity counter on it has indestructible.

Deathtouch
At the beginning of your end step, if you gained life this turn, each opponent sacrifices a creature of their choice and you return up to one target creature card from your graveyard to your hand.

Flying
Whenever a land an opponent controls enters, you may gain 3 life.

Return a creature you control to its owner's hand, then destroy all creatures.

Exploit (When this creature enters, you may sacrifice a creature.)
When this creature exploits a creature, target creature gets -3/-3 until end of turn.

When this creature enters, create three 0/1 colorless Eldrazi Spawn creature tokens. They have "Sacrifice this token: Add ."

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)
Vigilance

Afflict 3 (Whenever this creature becomes blocked, defending player loses 3 life.)
At the beginning of each of your postcombat main phases, add for each 1 life your opponents have lost this turn.

Soulbond (You may pair this creature with another unpaired creature when either enters. They remain paired for as long as you control both of them.)
As long as this creature is paired with another creature, both creatures have vigilance.

During your turn, this creature gets +2/+0 and has first strike. (It deals combat damage before creatures without first strike.)

This creature can't be blocked except by Walls and/or creatures with flying.

Flying
Wither (This deals damage to creatures in the form of -1/-1 counters.)
Creatures your opponents control with counters on them can't attack or block.

Vigilance, trample
, : Exile another target creature. Return that card to the battlefield under its owner's control at the beginning of the next end step.

Players can't gain life.
At the beginning of your upkeep, this enchantment deals 4 damage to you.
At the beginning of your end step, target opponent chosen at random gains control of this enchantment.

Search your library for up to two creature cards with different names, reveal them, put them into your hand, then shuffle.

Flying
Plainscycling (, Discard this card: Search your library for a Plains card, reveal it, put it into your hand, then shuffle.)
Eternalize (, Exile this card from your graveyard: Create a token that's a copy of it, except it's a 4/4 black Zombie Dragon with no mana cost. Eternalize only as a sorcery.)

Flash (You may cast this spell any time you could cast an instant.)
Whenever this creature is dealt damage, draw that many cards.

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)
When this creature enters, return target instant or sorcery card from your graveyard to your hand.

Whenever an opponent casts a spell, that player sacrifices a permanent of their choice unless they pay .

Flying, first strike

Kicker (You may pay an additional as you cast this spell.)
When this creature enters, if it was kicked, return target artifact card from your graveyard to your hand.

Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

Flying (This creature can't be blocked except by creatures with flying or reach.)
When this creature enters, each player loses 2 life.

At the beginning of your upkeep, each player exiles cards from the top of their library until they exile a nonland card. An opponent chooses a nonland card exiled this way. You may cast up to two spells from among the other cards exiled this way without paying their mana costs.

Rally — Whenever this creature or another Ally you control enters, creatures you control get +2/+2 until end of turn.

Defender
When this creature enters, you may return target instant or sorcery card from your graveyard to your hand.

Whenever a creature you control attacks, defending player loses 1 life and you gain 1 life.