Add, Mastermind

When this creature enters the battlefield, attacks or blocks, put two Drone counters on it.
{u}, Remove a Drone counter from this creature: Target creature gets +1/+1 until end of turn or target creature gets -1/-1 until end of turn.
{u}{u}{u}, Remove ten drone counters from this creature: Put a 6/6 colorless Apocalypse creature token into play with Flying.
"The real experiment... Starts now!"