Wormfang Drake, Sun Titan, and Phantom Train

Prerequisites

• Wormfang Drake in hand
• Sun Titan on the battlefield
• Phantom Train on the battlefield
• available

Steps

1. Cast Wormfang Drake by paying its mana cost
2. When Wormfang Drake enters, its first ability triggers, exiling Sun Titan
3. Activate Phantom Train by sacrificing Wormfang Drake
4. When Wormfang Drake dies, its second ability triggers, returning Sun Titan from exile to the battlefield
5. When Sun Titan enters, it triggers, returning Wormfang Drake from your graveyard to the battlefield
6. When Wormfang Drake enters, its first ability triggers, exiling Sun Titan
7. Resolve the Phantom Train ability
8. Repeat from step 3

Results

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