Metamorphosis Fanatic, Phantom Train, and Werefox Bodyguard

Prerequisites

• Metamorphosis Fanatic in hand
• Phantom Train on the battlefield
• Werefox Bodyguard in the graveyard
• available

Steps

1. Cast Metamorphosis Fanatic by paying
2. When Metamorphosis Fanatic enters, it triggers, returning Werefox Bodyguard from your graveyard to the battlefield
3. When Werefox Bodyguard enters, it triggers, exiling Metamorphosis Fanatic until Werefox Bodyguard leaves the battlefield
4. Activate Phantom Train by sacrificing Werefox Bodyguard
5. When Werefox Bodyguard leaves the battlefield, Metamorphosis Fanatic is returned from exile to the battlefield
6. Repeat from step 2
7. Resolve all Phantom Train abilities

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite +1/+1 counters on a creature