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.
NM-Mint - $1.10
Lightly Played - $1.00
Moderately Played - $0.90
Heavily Played - $0.80
Damaged - $0.60
NM-Mint Non English - $1.10
Lightly Played Non English - $1.00
Moderately Played Non English - $0.90
Heavily Played Non English - $0.80
Damaged Non English - $0.60
Foil Prices
NM-Mint Foil - $1.40
Lightly Played Foil - $1.30
Moderately Played Foil - $1.10
Heavily Played Foil - $1.00
Damaged Foil - $0.70
NM-Mint Foil Non English - $1.40
Lightly Played Foil Non English - $1.30
Moderately Played Foil Non English - $1.10
Heavily Played Foil Non English - $1.00
Damaged Foil Non English - $0.70