Armory Mice

A 3/1 for two attacks like an aggressive white common should, but the body it prints is a puzzle: fragile enough to trade with almost anything, yet asked to survive a turn where you're already committing multiple permanents to the board. Celebration turns that fragility into a conditional 3/3, and the threshold (two or more nonland permanents entering under your control in a single turn) is the whole design lever. It's a bribe to play the way the aggressive white deck already wants to: flood the board, deploy a token maker, drop a second cheap creature, and the mouse suddenly outlives the trade it would otherwise lose. What makes the toughness bump rather than a power bump the right call is that a 3/1 already hits hard enough; what it lacks is the durability to keep hitting. The counter-effect answers exactly the weakness the stat line creates, and it does so without ever making the card good on an empty turn, which keeps it honest as a curve-filler rather than a payoff you build around. Celebration as a mechanic rewards width without demanding a dedicated tokens shell, and this is one of the cleaner expressions of that idea: the reward is legible, the failure state is a vanilla 3/1, and the decision it forces is simply "did I develop enough this turn."