White Scars Devastator

Vigilance, First Strike
{t}: this creature deals X damage to target creature
where X is the number of creatures you control
Deadly Speed: when White Scars Legionary enters
the battlefield, target creature gets first strike and
haste until end of turn
{1}{r}{w}{b}{t}: target creature gets +2/+2, trample, double strike and menace
until end of turn