Vraska, Underrealm Matriarch

Delve (Each card you exile from your graveyard
while casting this spell pays for {1}.)
When Vraska, Underrealm Matriarch enters the battlefield, put a stone counter on up to three
target nonland permanents. Permanents with a
stone counter on it lose all abilities and can't
attack or block as long as you control a Gorgon.
{2}{b}{g}, {t}: Destroy target creature. If it had a
stone counter on it, draw a card.