Hepsiot, Crowning Despot

Whenever Hepsiot, Crowning Despot and at least three other creatures attack, Hepsiot gains indestructible until end of turn.
Whenever Hepsiot attacks, you may exile up to one other target attacking creature you control. Then, if you have exiled five or more creatures with power less than Hepsiot's power this way this game, defending player loses the game.
"Your inferiority blinds you."