Jinnie Fay, Jetmir's Second, Gemcutter Buccaneer, and Leyline of Transformation

Prerequisites

• Jinnie Fay, Jetmir's Second on the battlefield
• Gemcutter Buccaneer in hand
• Leyline of Transformation on the battlefield
• available

Steps

1. Cast Gemcutter Buccaneer by paying
2. When Gemcutter Buccaneer enters the battlefield, it triggers, creating a tapped 2/2 Cat or 3/1 Dog creature token due to Jinnie Fay
3. When the Cat or Dog enters the battlefield as a Pirate due to Leyline of Transformation, Gemcutter Buccaneer triggers, creating a tapped 2/2 Cat or 3/1 Dog creature token due to Jinnie Fay
4. Repeat step 3

Results

• Infinite ETB
• Infinite tapped creature tokens