Whenever you cast a multicolored spell, create a tapped Powerstone token. (It's an artifact with “{T}, Add {C}. This mana can't be spent to cast a nonartifact spell.”)
{X}{X}{X}, {T}: Look at the top X cards of your library. Put up to two of them into your hand and the rest on the bottom of your library in a random order.
NM-Mint - $0.70
Lightly Played - $0.60
Moderately Played - $0.60
Heavily Played - $0.50
Damaged - $0.40
NM-Mint Non English - $0.70
Lightly Played Non English - $0.60
Moderately Played Non English - $0.60
Heavily Played Non English - $0.50
Damaged Non English - $0.40
Foil Prices
NM-Mint Foil - $0.80
Lightly Played Foil - $0.80
Moderately Played Foil - $0.80
Heavily Played Foil - $0.70
Damaged Foil - $0.60
NM-Mint Foil Non English - $0.80
Lightly Played Foil Non English - $0.80
Moderately Played Foil Non English - $0.80
Heavily Played Foil Non English - $0.70
Damaged Foil Non English - $0.60