Eclipsa, the Queen of Darkness

Other Black permanents you control have hexproof.
Menace
{b}{t}, Discard a card: Target permanent loses all abilities until your next turn.
{1}{b}{t}, Discard a card: Destroy target creature. Instead of putting that creature into it's owners graveyard put it onto the battlefield instead with base power and toughness 1/1 and loses all abilities.
{5}{b}{b}{t}, Discard a card: Exile all creatures an opponent controls.