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

WB identity

Commander legal

The 3 combo pieces

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

How to execute it

1. Activate Phantom Train by sacrificing Marionette Apprentice.
2. When Marionette Apprentice dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
3. When Marionette Apprentice 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