: Move: move 1 CL (Card Length) tabletop, 2 CL terrain
+8: Shoot: roll die, 1, 2, or 3 miss, 4, 5, or 6, hit. Shoots 4 CL (Card Lengths) tabletop, 8 CL terrain. Double damage to objective.
+4: Defend: Crew attacks attacking unit, lose 1 attack every 2 defends. After attack becomes 0, ballista shoots only once more.