Bloomburrow

Brave-Kin Duo | Creature | Rabbit Mouse | {1}, {T}: Target creature gets +1/+1 until end of turn. Activate only as a sorcery. | Devin Platts

Crumb and Get It | Instant | | Gift a Food (You may promise an opponent a gift as you cast this spell. If you do, they create a Food token before its other effects. It's an artifact with "{2}, {T}, Sacrifice this artifact: You gain 3 life.") Target creature you control gets +2/+2 until end of turn. If the gift was promised, that creature also gains indestructible until end of turn. | Justyna Dura

Flowerfoot Swordmaster | Creature | Mouse Soldier | Offspring {2} (You may pay an additional {2} as you cast this spell. If you do, when this creature enters, create a 1/1 token copy of it.) 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. | Aaron Miller

Seasoned Warrenguard | Creature | Rabbit Warrior | Whenever Seasoned Warrenguard attacks while you control a token, Seasoned Warrenguard gets +2/+0 until end of turn. | Dave Kendall