Arcanis, The Omniscient

This spell costs {1} less to cast for each instant or sorcery you own in your graveyard
or in exile.
Wizards you control get +1/+1 for each
instant or sorcery you own in your
graveyard or in exile.
When Arcanis, the Omniscient attacks
you may cast a sorcery card from your
graveyard without paying its mana
cost. If a spell cast this way would be
put into your graveyard, exile it instead.