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.
Near Mint Foil - £2.20
Lightly Played Foil - £1.90
Moderately Played Foil - £1.60
Heavily Played Foil - £1.10
Damaged Foil - £0.70
Near Mint Foil Non English - £2.20
Lightly Played Foil Non English - £1.90
Moderately Played Foil Non English - £1.60
Heavily Played Foil Non English - £1.10
Damaged Foil Non English - £0.70