Dret the Abhorrent

{3}{b/g}, {t}, Discard a card: Create four 3/1 black
and green Swarm creature tokens with Flying.
Swarm creature tokens you control have Haste.
{1}{b}{g}: Dret the Abhorrent's power and
toughness becomes 6/6 until end of turn.
Death by 1,000 tiny bites.