Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight, Blasting Station, and Reputable Merchant

Prerequisites

• Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight on the battlefield
• Blasting Station on the battlefield
• Reputable Merchant on the battlefield

Steps

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

Results

• Infinite +1/+1 counters on creatures you control
• Infinite ETB
• Infinite LTB
• Infinite damage
• Infinite death triggers
• Infinite sacrifice triggers
• Infinite mana creatures you control can produce
• Infinite untap of creatures you control