Henry Wu, InGen Geneticist, Chatterfang, Squirrel General, Nadir Kraken, Artificial Evolution, and Obelisk of Urd

Prerequisites

• Henry Wu, InGen Geneticist in hand
• Chatterfang, Squirrel General on the battlefield
• Nadir Kraken on the battlefield
• Artificial Evolution in hand
• Obelisk of Urd on the battlefield
• You control a non-Squirrel creature that has power 3 or greater
• "Tentacle" chosen with Obelisk of Urd
• available

Steps

1. Cast Henry Wu by paying
2. When Henry Wu enters the battlefield, its exploit ability triggers
3. Holding priority, cast Artificial Evolution by paying , changing all instances of "Human" on Henry Wu to "Squirrel"
4. Resolve the Henry Wu trigger, causing you to sacrifice another non-Squirrel creature with power 3 or greater
5. Henry Wu's second ability triggers, causing you to draw a card and create a 1/1 Squirrel creature token and a Treasure artifact token
6. The Squirrel's exploit ability and Nadir Kraken trigger
7. Activate the Treasure by tapping and sacrificing it, adding
8. Resolve the Nadir Kraken trigger, causing you to pay to put a +1/+1 counter on it and create a 1/1 Tentacle creature token
9. Resolve the Squirrel trigger from step 6, causing you to sacrifice the Tentacle
10. Repeat from step 5

Results

• Infinite card draw
• Near-infinite +1/+1 counters on Nadir Kraken
• Near-infinite creature tokens
• Near-infinite death triggers
• Near-infinite draw triggers
• Near-infinite ETB
• Near-infinite LTB
• Near-infinite sacrifice triggers