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.

Haste Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.) Valiant — Whenever this creature becomes the target of a spell or ability you control for the first time each turn, exile the top card of your library. Until end of turn, you may play that card.

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.) At the beginning of combat on your turn, target Mouse you control gains your choice of double strike or trample until end of turn.

Whenever Recruit Instructor attacks, draft a card from Recruit Instructor's spellbook. Valiant — Whenever Recruit Instructor becomes the target of a spell or ability you control for the first time each turn, create a 1/1 white Mouse creature token.

Enchant creature you control When this Aura enters, exile target nonland permanent an opponent controls until this Aura leaves the battlefield. Enchanted creature gets +1/+0 and has lifelink and ward {2}.

Attacking tokens you control get +1/+0. Whenever you cast your first creature spell each turn, that spell gains mobilize 2.

Kicker {4} (You may pay an additional {4} as you cast this spell.) Burst Lightning deals 2 damage to any target. If this spell was kicked, it deals 4 damage instead.

You get a one-time boon with "When you cast a creature spell, it gains prowess and haste." Draw a card.

({T}: Add {W}.)

({T}: Add {R}.)