Brimscythe, the Iron Storm

Flying, Trample
kicker {3}{u} (you may pay an additional {3}{u} as
you cast this spell)
When Brimscythe, the Iron Storm enters the battlefield deal X damage divided as you choose
among any number of target creatures or planeswalkers where X is the number of instant
and sorcery cards in your graveyard. if this spell
was kicked, X equals the number of instants and sorcory cards in all graveyards.