Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight + Reputable Merchant + Phantom Train

Prerequisites

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Steps

1. 1Activate Phantom Train by sacrificing Reputable Merchant.
2. 2When Reputable Merchant dies, its innate ability and persist ability trigger.
3. 3Resolve the Reputable Merchant trigger, putting a +1/+1 counter on a creature you control.
4. 4Resolve the persist trigger, returning Reputable Merchant from your graveyard to the battlefield with a -1/-1 counter on it.
5. 5When Reputable Merchant enters, it triggers, putting a +1/+1 counter on it.
6. 6Resolve the Phantom Train ability.
7. 7Repeat.

Effects

• Infinite +1/+1 counters on creatures you control
• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers