Flying
When this creature enters, put an indestructible counter on another target creature you control. Draw a card if that creature's power is 2 or less.

Flying
Whenever this creature attacks, it gets +1/+1 until end of turn for each other creature you control.

Flying, vigilance

Flying
When this creature enters, creatures you control get +1/+0 and gain first strike until end of turn.
Plainscycling

When this creature enters, exile up to one target artifact, creature, or enchantment an opponent controls with mana value 3 or greater until this creature leaves the battlefield.

Vigilance
Sacrifice this creature: Another target Ally you control gains indestructible until end of turn.

When this creature enters, creatures you control get +1/+1 until end of turn.

Flying, vigilance
Alliance — Whenever another creature you control enters, this creature gets +1/+0 until end of turn.

When this creature enters, create a Food token. When you do, target creature you control gets +1/+1 until end of turn for each Food you control.

Vigilance
Whenever this creature deals damage to a Goblin or Orc, destroy that creature.

Flying
When this creature enters, you get .
Whenever this creature attacks, you may pay . If you do, another target attacking creature gains flying until end of turn.

Vigilance
Whenever you attack with two or more creatures, this creature becomes prepared.

Flying
At the beginning of your upkeep, return a white creature you control to its owner's hand.

: Target permanent you control gains protection from white until end of turn.
: Target spell or permanent becomes white until end of turn.

Flying, lifelink
Creature spells you cast have convoke.
At the beginning of your first main phase, you may pay . If you do, transform Eirdu.

Other Phyrexians you control get +1/+1.
Each Equipment you control has living weapon.

Flying, first strike

When this creature dies, put a +1/+1 counter on target creature you control. If that creature is a Human, put two +1/+1 counters on it instead.

Defender, trample
When this creature blocks, it loses defender.

Devoid
: Exile another target creature, then return it to the battlefield tapped under its owner's control.

When Elena enters, return target non-Assassin historic card from your graveyard to your hand. (Artifacts, legendaries, and Sagas are historic.)
Whenever you cast a historic spell, put a +1/+1 counter on Elena.

Flying
Whenever you gain life, put a +1/+1 counter on this creature.
When this creature dies, create X 1/1 white Vampire creature tokens with lifelink, where X is its power.

Vigilance
Whenever a source an opponent controls deals damage to you or a permanent you control, that source's controller loses 2 life unless they pay .
, Sacrifice three other creatures: Exile Elesh Norn, then return it to the battlefield transformed under its owner's control. Activate only as a sorcery.

Vigilance
Other creatures you control get +2/+2.
Creatures your opponents control get -2/-2.

Vigilance
If a permanent entering causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time.
Permanents entering don't cause abilities of permanents your opponents control to trigger.

Lifelink
When this creature dies, create a 1/1 white Spirit creature token with flying.

: This creature deals 3 damage to target attacking or blocking creature.

, : Tap target creature.

First strike, vigilance
Protection from Vampires, from Werewolves, and from Zombies

This creature enters prepared.