This spell costs 1 less to cast for each card type among permanents you've sacrificed this turn.
Flying, trample, haste
Whenever Korvold deals combat damage to a player, put X +1/+1 counters on Korvold and draw X cards, where X is the number of permanent types among cards in your graveyard.
Near Mint - £0.60
Lightly Played - £0.50
Moderately Played - £0.40
Heavily Played - £0.30
Damaged - £0.20
Near Mint Non English - £0.60
Lightly Played Non English - £0.50
Moderately Played Non English - £0.40
Heavily Played Non English - £0.30
Damaged Non English - £0.20
Foil Prices
Near Mint Foil - £2.40
Lightly Played Foil - £2.10
Moderately Played Foil - £1.70
Heavily Played Foil - £1.20
Damaged Foil - £0.80
Near Mint Foil Non English - £2.40
Lightly Played Foil Non English - £2.10
Moderately Played Foil Non English - £1.70
Heavily Played Foil Non English - £1.20
Damaged Foil Non English - £0.80