Thantos, Crowned Slave

Underworld Eminences- If your commander is in
the Graveyard, instant and sorcery cards have flashback. The flashback cost is equal to that
card's converted mana cost
Magecraft- Whenever you cast or copy an instant
or sorcery spell create a 1/1 Human with Lifelink
Escape- {3}{b}{b}, Exile Three cards
or one instant or sorcery from your graveyard