Niv-Mizzet, the Firemind
Legendary Creature — Dragon Wizard
Flying
Whenever you draw a card, Niv-Mizzet deals 1 damage to any target.
: Draw a card.
As brilliant as a cut diamond, and with just as cruel an edge.
Todd Lockwood
Rulings
If dealing 1 damage to a permanent or player causes you to draw a card, perhaps because Niv-Mizzet is enchanted by Curiosity, you'll continue this loop until the loop is interrupted, perhaps by a player losing the game.
(wotc • 2018-03-16)
If a spell or ability causes you to draw multiple cards, Niv-Mizzet's ability triggers that many times.
(wotc • 2018-03-16)
Rulings
If dealing 1 damage to a permanent or player causes you to draw a card, perhaps because Niv-Mizzet is enchanted by Curiosity, you'll continue this loop until the loop is interrupted, perhaps by a player losing the game.
(wotc • 2018-03-16)
If a spell or ability causes you to draw multiple cards, Niv-Mizzet's ability triggers that many times.
(wotc • 2018-03-16)