Finch Formation

Valiant — Whenever this creature becomes the target of a spell or ability you control for the first time each turn, Mice you control get +1/+0 until end of turn. (This token's mana cost is W.)

When this creature enters, target creature you control gets +1/+1 until end of turn. (This token's mana cost is 2W.)

Defender

Whenever you attack, choose one — • Create a 1/1 white Rabbit creature token that's tapped and attacking. • Attacking creatures you control get +1/+1 until end of turn. (This token's mana cost is 2WW.)

When this creature enters, tap up to one target creature and put a stun counter on it. (This token's mana cost is 3U.)

When this creature enters, look at the top four cards of your library. You may reveal a noncreature, nonland card from among them and put it into your hand. Put the rest on the bottom of your library in a random order. (This token's mana cost is 1U.)