Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight + Marionette Master + Phantom Train

WB identity

Commander legal

The 3 combo pieces

• Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight
• Marionette Master
• Phantom Train

How to execute it

1. Activate Phantom Train by sacrificing Marionette Master.
2. When Marionette Master dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
3. When Marionette Master enters, its fabricate ability triggers, putting a +1/+1 counter on it.
4. Resolve the Phantom Train ability.
5. Repeat.

What the combo produces

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