Gravelgill Axeshark + Phantom Train + Vizier of Remedies

WUB identity

Commander legal

The 3 combo pieces

• Gravelgill Axeshark
• Phantom Train
• Vizier of Remedies

How to execute it

1. Activate Phantom Train by sacrificing Gravelgill Axeshark.
2. When Gravelgill Axeshark dies, its persist ability triggers, returning it from your graveyard to the battlefield without a -1/-1 counter on it due to Vizier of Remedies.
3. Resolve the Phantom Train ability
4. Repeat.

What the combo produces

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