Infestor

Infestor enters the battlefield with {e}{e}{e}{e}{e}. At the beginning of each of your upkeeps, put {e} on Infestor.
{e}{e}{e}{t}: Gain control of target creature until
end of turn
{e}{e}{t}: Tap up to three target creatures
opponents control and deal 1 damage to each of
them.
Pay X {e}, {t}: Create X/2 2/2 Infested Terran creature tokens with Reach. Exile them at the beginning of the next end step.