Mizzix's Mastery [Commander 2015] XY45 Spend this mana only to

Spend this mana only to cast a creature spell of the chosen type

so does the Nightmare's rage and terrifying strength

If you have 13 or less [Life]

Set: Weatherlight Type: Sorcery Rarity: Rare Cost: {B}{B}{B} Search your library and graveyard for five cards and exile the rest

if it wasn't sacrificed

Mizzix's Mastery [Commander 2015] XY45 Spend this mana only toSet: Commander 2015 Type: Sorcery Rarity: Rare Cost: {3}{R} Exile target card that's an instant or sorcery from your graveyard. For each card exiled this way, copy it, and you may cast the copy without paying its mana cost. Exile Mizzix's Mastery. Overload {5}{R}{R}{R} (You may cast this spell for its overload cost. If you do, change its text by replacing all instances of "target" with "each.")