Agatha of the Vile Cauldron 199p/200 (Promo Pack: Wilds of Eldraine)

Activated abilities of creatures you control cost {X} less to activate, where X is Agatha's power. This effect can't reduce the mana in that cost to less than one mana. {4}{R}{G}: Other creatures you control get +1/+1 and gain trample and haste until end of turn.

NM - $15.30
LP - $12.20
MP - $9.20
HP - $6.10
DMG - $3.10