Activated abilities of creatures you control cost X less to activate, where X is Agatha of the Vile Cauldron's power. This effect can't reduce the mana in that cost to less than one mana.
4RG: Other creatures you control get +1/+1 and gain trample and haste until end of turn.
Near Mint - £0.60
Lightly Played - £0.60
Moderately Played - £0.50
Heavily Played - £0.30
Damaged - £0.20
Near Mint Non English - £0.60
Lightly Played Non English - £0.60
Moderately Played Non English - £0.50
Heavily Played Non English - £0.30
Damaged Non English - £0.20
Foil Prices
Near Mint Foil - £1.00
Lightly Played Foil - £0.90
Moderately Played Foil - £0.70
Heavily Played Foil - £0.50
Damaged Foil - £0.30
Near Mint Foil Non English - £1.00
Lightly Played Foil Non English - £0.90
Moderately Played Foil Non English - £0.70
Heavily Played Foil Non English - £0.50
Damaged Foil Non English - £0.30