Kombeir, the Worthy King

{w}{u}{b}{r}{g}, {t}: Put a -1/-1 counter on Kombeir.
When you do, destroy target permanent you don't control.
Overheat — Remove a -1/-1 counter from
Kombeir, the Worthy King, {ut}: Scarecrows you control get +1/+1 until end of turn. If this is the
third time this ability has resolved this turn,
Kombeir gains +5/+5 and trample until end of
turn, and he's sacrificed during your next end
phase.