Kraig, the Unquenchable Storm

Flying, prowess
Whenever you cast an instant or sorcery spell
for the first time each turn, Kraig deals 2 damage
to any target. This damage can't be prevented.
Whenever Kraig attacks, empower Kraig. (An empowered creature's base power and toughness are
each equal to the number of instant and sorcery cards
in it's owner's graveyard.)