Ygra, Eater of All, Experimental Confectioner, and Krark-Clan Grunt

Prerequisites

• Ygra, Eater of All on the battlefield
• Experimental Confectioner on the battlefield
• Krark-Clan Grunt on the battlefield
• You control at least one additional creature

Steps

1. Activate Krark-Clan Grunt by sacrificing another creature
2. When the creature dies as a Food due to Ygra, Experimental Confectioner's second ability and Ygra trigger
3. Resolve the Experimental Confectioner trigger, causing you to create a 1/1 Rat creature token
4. Resolve the Ygra trigger, putting two +1/+1 counters on it
5. Resolve the Krark-Clan Grunt ability
6. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinitely powerful Krark-Clan Grunt until end of turn
• Infinite +1/+1 counters on Ygra