Whenever Niv-Mizzet, Guildpact deals combat damage to a player, it deals X damage to any target, target player 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 - $2.60
Lightly Played Foil - $2.50
Moderately Played Foil - $2.40
Heavily Played Foil - $2.10
Damaged Foil - $1.70
NM-Mint Foil Non English - $2.60
Lightly Played Foil Non English - $2.50
Moderately Played Foil Non English - $2.40
Heavily Played Foil Non English - $2.10
Damaged Foil Non English - $1.70