Tandem Lookout +Niv-Mizzet, Parun +

Infinite draw Infinite damage Revised by CR

Pair Niv-Mizzet with Tandem Lookout Play any instant or sorcery to trigger Niv-Mizzet, draw a card When you do, its ability will trigger, dealing 1 damage to any target. When dealing damage, Tandem Lookout's ability will trigger, making you draw a card. Niv-Mizzet will trigger again, dealing 1 damage. This will create an infinite draw and damage loop.

Legallity