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.
![Niv-Mizzet, Guildpact (Serialized) [Murders at Karlov Manor]](http://tothetablebgc.myshopify.com/cdn/shop/files/3fdad75c-82e3-4feb-9bc9-29b6251439cb.png?v=1776498940&width=1445)
