Diabolic Formula
Enchantment
Whenever one or more instant and/or sorcery cards leave your graveyard, conjure a random creature card with mana value X onto the battlefield, where X is the greatest mana value among those cards.
Not legal in Commander
Enchantment
Whenever one or more instant and/or sorcery cards leave your graveyard, conjure a random creature card with mana value X onto the battlefield, where X is the greatest mana value among those cards.
Not legal in Commander