Faust, Enigmatic Analyst

Ward {x}, where X is the number of cards in exile
you own with research counters on them.

The first time each turn an instant or sorcery enters your graveyard without being cast, exile it with a research counter on it. Instants and sorceries you
cast cost {1} less to cast for each card in exile you
own with a research counter on it.

E.G.O. Resonance (You can have an E.G.O. as a second commander.)