Magmatic Channeler 
Creature — Human Wizard
As long as there are four or more instant and/or sorcery cards in your graveyard, this creature gets +3/+1.
, Discard a card: Exile the top two cards of your library, then choose one of them. You may play that card this turn.
Legality
standardNOT LEGALpioneerLEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL