Isht, Empress of Lust

Haste, deathtouch
If there are 10 or more creatures in all graveyards,
Isht, Empress of Lust costs {4} less to cast.
{2}{p/b}{p/r}: Gain control of target creature until
end of turn. Untap it. It gains haste, then
sacrifice it at the end of turn.
The Empress demands your affection....