Whenever Mishra, Lost to Phyrexia enters the battlefield or attacks, choose three —
• Target opponent discards two cards.
• Mishra deals 3 damage to any target.
• Destroy target artifact or planeswalker.
• Creatures you control gain
menace (This creature can't be blocked except by two or more creatures.) and
trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.) until end of turn.
• Creatures you don't control get -1/-1 until end of turn.
• Create two tapped
Powerstone tokens
(A Powerstone is an artifact with ": Add . This mana can't be spent to cast a nonartifact spell.").