Whenever Niv-Mizzet, Guildpact deals combat damage to a player, it deals X damage to any target, target plater draws X cards, and you gain X life, where X is the number of different color pairs among permanents you control that are exactly two colors.
NM-Mint Foil - $798.90
Lightly Played Foil - $759.00
Moderately Played Foil - $719.00
Heavily Played Foil - $639.10
Damaged Foil - $519.30
NM-Mint Foil Non English - $798.90
Lightly Played Foil Non English - $759.00
Moderately Played Foil Non English - $719.00
Heavily Played Foil Non English - $639.10
Damaged Foil Non English - $519.30