Annihilation Movement

Cast this spell only if a creature is attacking you.
Put up to X target creature cards in graveyards
onto the battlefield under your control. They are Zombie Drones in addition to their other types.
Until end of turn, if X is 3 or greater, whenever a
Drone or Zombie you control deals combat
damage to another creature, gain control of that creature and it becomes a Drone in addition to its
other types.