Dragonslayer Ornstein

First strike, haste, vigilance
{2}{w},{t}: Deal 3 damage to any target, target
opponent, gains 1 lightning counter.
{2}{r}: Dragonslayer Ornstein gets +3/+2, and
gains trample until end of turn.
{8}{r}{w}: Dragonslayer Ornstein gets +5/+5 and
gains trample, and double strike until end of turn,
deals 10 damage combined onto target creatures
of your choice, target players with 10 or more
lightning counters lose the game.