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'{T}: Add one mana of any color in your commander's color identity.
'{T}: Add one mana of any color in your commander's color identity.
'Flying
Whenever Niv-Mizzet deals damage to a player, you may draw a card.
{U}{R}: Niv-Mizzet deals 1 damage to any target.
'{T}: Add one mana of any color in your commander's color identity.
'{1}, {T}: Add {B}{G}.
'{1}, {T}: Add {B}{G}.
'This spell can't be countered. Flying Whenever you draw a card, Niv-Mizzet deals 1 damage to any target. Whenever a player casts an instant or sorcery spell, you draw a...
'{T}: Add one mana of any color in your commander's color identity.
'{1}, {T}: Add {U}{B}.
'{T}: Add one mana of any color in your commander's color identity.
'{T}: Add one mana of any color in your commander's color identity.
'{1}, {T}: Add {G}{W}.