Arachaal, God of Justice

Double strike, trample, vigilance, reach
Players skip their combat phases.
Whenever 3 or more creatures enter the battlefield under you control during your first main phase, they gain haste. After this combat phase, there is an additional combat phase that can't be skipped.
Whenever a creature you control that attacked this turn dies, you may sacrifice a nonland permanent and put a +1/+1 counter on Arachaal, God of Justice.