Izen, The First Mage

Instant and sorcery spells you cast cost {x} less to cast where {x} is the number of instant and sorcery cards in your graveyard.
Whenever an instant or sorcery is cast Izen, The First Mage gets +1+1 and your choice of flying, vigilance, doublestrike, infect, haste, deathtouch, hexproof, indestructible, trample, menace and lifelink.