Entreides, Freshly Minted

Whenever a creature you control dies, you may reveal and cast Entreides from your hand.
Whenever Entreides would deal combat damage
to a creature, flip a coin. If heads, destroy that creature. If tails, remove Entreides from combat tapped and prevent all combat damage dealt to it until end of turn.
My master fell and I picked up his sword. With luck I shall now avenge him.