Eloise, Nephalia Sleuth, Chatterfang, Squirrel General, and Ashnod's Altar

Prerequisites

• Eloise, Nephalia Sleuth on the battlefield
• Chatterfang, Squirrel General on the battlefield
• Ashnod's Altar on the battlefield
• You have an additional creature to sacrifice

Steps

1. Activate Ashnod's Altar by sacrificing a creature, adding
2. Eloise triggers, creating a Clue token and a 1/1 Squirrel creature token
3. Activate Ashnod's Altar by sacrificing the Squirrel token, adding
4. Eloise triggers twice
5. Resolve the first Eloise trigger, surveiling one
6. Resolve the second Eloise trigger, creating a Clue token and a 1/1 Squirrel creature token
7. Repeat steps 3-6

Results

• Infinite card draw
• Infinite Clue tokens
• Infinite colorless mana
• Infinite death triggers
• Infinite draw triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers
• Infinite self-mill
• Infinite surveil