Sound the alarm on one rank of your half: swap pairs of your pieces standing on it, up to 4 swaps, then everyone pretends this was orderly.
You draft Fire Drill in Buff mode. Activated: you choose when to use it, and using it is your move for that turn.
As a movement card, it changes how one of your pieces is allowed to move.
“Single file. SINGLE FILE. Fine, any file.”