Malcolm, Keen-Eyed Navigator, Magmaw, Quina, Qu Gourmet, and Unnatural Selection

Prerequisites

• Malcolm, Keen-Eyed Navigator on the battlefield
• Magmaw on the battlefield
• Quina, Qu Gourmet on the battlefield
• Unnatural Selection on the battlefield
• available

Steps

1. Activate Unnatural Selection by paying , causing Magmaw to become a Pirate until end of turn
2. Activate Magmaw by paying and sacrificing another nonland permanent, dealing 1 damage to an opponent
3. Malcolm triggers, creating a Treasure and a 1/1 Frog creature token
4. Activate a Treasure by tapping and sacrificing it, adding
5. Repeat from step 2

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite damage