edhseer Commander synergy, explained
Legendary Creature — Dragon Avatar
Mana cost: {W}{U}{B}{R}{G}
Flying, hexproof from multicolored
Whenever Niv-Mizzet 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.
triggered — deals X damage
triggered — draws you X cards
triggered — gains you life
Causes: anything deals noncombat damage, draw a card, gain life.
Cares about: nothing.
a Dragon attacks — 474 cards in Niv-Mizzet's colors can cause this (Niv-Mizzet is one).
When Niv-Mizzet, Guildpact attacks:
a Dragon deals combat damage — 474 cards in Niv-Mizzet's colors can cause this (Niv-Mizzet is one).
When Niv-Mizzet, Guildpact deals combat damage:
a nontoken Dragon enters the battlefield — 484 cards in Niv-Mizzet's colors can cause this (Niv-Mizzet is one).
When Niv-Mizzet, Guildpact enters:
a Dragon enters the battlefield — 524 cards in Niv-Mizzet's colors can cause this (Niv-Mizzet is one).
When Niv-Mizzet, Guildpact enters:
4 other cards care about it too. These are the ones with the most connections.
life is gained — 2,076 cards in Niv-Mizzet's colors can cause this (Niv-Mizzet is one).
When Niv-Mizzet, Guildpact gains life:
84 other cards care about it too. These are the ones with the most connections.
anything deals noncombat damage — 3,068 cards in Niv-Mizzet's colors can cause this (Niv-Mizzet is one).
When Niv-Mizzet, Guildpact deals noncombat damage:
36 other cards care about it too. These are the ones with the most connections.
life is lost — 3,160 cards in Niv-Mizzet's colors can cause this (Niv-Mizzet is one).
When Niv-Mizzet, Guildpact makes a player lose life:
46 other cards care about it too. These are the ones with the most connections.
a card is drawn — 3,815 cards in Niv-Mizzet's colors can cause this (Niv-Mizzet is one).
When Niv-Mizzet, Guildpact makes a player draw a card:
61 other cards care about it too. These are the ones with the most connections.
a creature attacks — 17,934 cards in Niv-Mizzet's colors can cause this (Niv-Mizzet is one).
190 other cards care about it too. These are the ones with the most connections.