When this creature enters, put a +1/+1 counter on target creature.

Flying, vigilance
Silverwing Squadron's power and toughness are each equal to the number of creatures you control.
Whenever this creature attacks, create a number of 2/2 white Knight creature tokens with vigilance equal to the number of opponents you have.

, : Target creature gets -2/-0 until end of turn.

You gain 3 life.
Draw a card.

Commander creatures you own get +3/+3 and have flying, deathtouch, "Ward—Pay 3 life," and "At the beginning of your upkeep, sacrifice a creature."

Whenever you gain life, put a +1/+1 counter on this creature.

When this creature enters, you may search your library for an Assembly-Worker creature card, reveal it, put it into your hand, then shuffle.

Destroy target tapped creature.

Outnumber deals damage to target creature equal to the number of creatures you control.

Return target creature card from your graveyard to the battlefield.
Flashback—Sacrifice three creatures. (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Deathtouch
When Rilsa Rael enters, you take the initiative.
Whenever you attack, target attacking creature gains deathtouch until end of turn. If you've completed a dungeon, that creature also gets +5/+0 and gains first strike and menace until end of turn.

: Add one mana of any color in your commander's color identity.

Flash
This creature enters tapped.

When this creature enters, for each kind of counter on target permanent, put another counter of that kind on it or remove one from it.

: Draw two cards. Target opponent gains control of this creature. Activate only during your turn.

Whenever a creature attacks you, it gets -1/-0 until end of turn.

(: Add .)

Creatures you control get +X/+X, where X is the number of creatures that entered the battlefield under your control this turn.
At the beginning of combat on your turn, create a 1/1 green and white Kithkin creature token.

At the beginning of your end step, each player exiles the top card of their library. Until your next end step, each player may play the card they exiled this way.
Whenever a player plays a land from exile or casts a spell from exile, you put a +1/+1 counter on target creature and create a Food token. (It's an artifact with ", , Sacrifice this token: You gain 3 life.")