Niv-Mizzet, the Firemind + Thornbite Staff + Zagras, Thief of Heartbeats

Niv-Mizzet, the Firemind
Thornbite Staff
Zagras, Thief of Heartbeats

Requires
Niv-Mizzet, the Firemind must be on the battlefield. Thornbite Staff must be on the battlefield. Zagras, Thief of Heartbeats must be on the battlefield.
Steps
  1. Activate Niv-Mizzet by tapping it, causing you to draw a card.
  2. Niv-Mizzet triggers, dealing 1 damage to a creature an opponent controls, and destroying the creature due to Niv-Mizzet's deathtouch.
  3. The creature dies, triggering Thornbite Staff, untapping Niv-Mizzet.
  4. Repeat.
  5. You may repeat this loop whenever a creature enters the battlefield under an opponent's control.
Results
Destroy all creatures that enter the battlefield under an opponent's control. Destroy all nontoken creatures opponents control. Near-infinite card draw. Near-infinite draw triggers.

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