When Henry Wu enters the battlefield, its exploit ability triggers.
Holding priority, cast Artificial Evolution by paying , changing all instances of "Human" on Henry Wu to "Squirrel".
Resolve the Henry Wu trigger, causing you to sacrifice another non-Squirrel creature with power 3 or greater.
Henry Wu's second ability triggers, causing you to draw a card and create a 1/1 Squirrel and a 3/1 Dog creature token due to Jinnie Fay and Chatterfang.
When the Squirrel enters the battlefield, its exploit ability triggers, causing you to sacrifice the Dog token.
Repeat from step 5.
By targeting Henry Wu, InGen Geneticist with Artificial Evolution, you permanently rewrite its text to care about "Squirrels" instead of Humans, transforming it into a self-contained engine that feeds upon its own creations. Whenever Henry Wu exploits a creature with power 3 or greater, its triggered ability normally grants you card draw and a Treasure, but Jinnie Fay, Jetmir's Second gracefully steps in to replace that token creation with powerful dog tokens instead. Meanwhile, Chatterfang, Squirrel General doubles down on your token generation by flooding your board with extra 1/1 Squirrels alongside the dogs. Because those generated tokens also possess exploit thanks to Henry Wu's rewritten text, you can sacrifice your dog tokens to fuel an endless cycle of sacrifices, draws, and token generation.