Keleth Silverfall

Vigilance
{2}{w/b}: Keleth Silverfall gains first strike until end
of turn. If black mana is used to pay for this
ability, it gains lifelink. If white mana was used
to pay for this ability, it gets +0/+2 until end of
turn. Activate this ability only once per turn.
A former scion of House Silverfane, cursed to eternity
for his betrayal.