Three movements, each a free action, at most one per your turn, played in order: first every pawn you own advances a square; second each of your knights and bishops drifts one random empty step; third your rooks and queen may pass through friendly pieces until your turn ends.
You draft Symphony of the Legion in Buff mode. Free action: you choose when to use it, and it resolves without costing your turn.
As a tempo card, it buys time: an extra move, a skip, or a freeze.
“The conductor taps the podium. The army inhales.”