Boonweaver Giant + Kaya's Ghostform + Phantom Train

WB identity

Commander legal

The 3 combo pieces

• Boonweaver Giant
• Kaya's Ghostform
• Phantom Train

How to execute it

1. Activate Phantom Train by sacrificing Boonweaver Giant
2. When Boonweaver Giant dies, Kaya's Ghostform triggers, returning Boonweaver Giant from your graveyard to the battlefield
3. When Boonweaver Giant enters, it triggers, returning Kaya's Ghostform from your graveyard to the battlefield attached to Boonweaver Giant.
4. Resolve the Phantom Train ability from step 1.
5. Repeat.

What the combo produces

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