Ronan, Lost to Phyrexia

Whenever Ronan, Lost to Phyrexia enters the battlefield or attacks, choose three—
•Target opponent discards two cards.
•Destroy target artifact or planeswalker.
•Creatures you control gain menace and trample
until end of turn.
{bull}Creatures you don't control get -1/-1 until end
of turn.
{bull}Create two tapped Powerstone tokens.