Two Face, Gambling Gangster

Whenever an opponent casts their first creature
spell each turn, flip a coin. If you win the flip,
you gain 2 life and put up to one stun counter
on target creature you don't control. If you lose
the flip, you lose 2 life unless you discard a card.
Creatures your opponents control with stun
counters on them can't block.
"I make my own luck."
—Harvey Dent