Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight, Mindless Automaton, and Krark-Clan Ironworks

Prerequisites

• Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight on the battlefield
• Mindless Automaton on the battlefield
• Krark-Clan Ironworks on the battlefield

Steps

1. Activate Krark-Clan Ironworks by sacrificing Mindless Automaton
2. When Mindless Automaton dies, its persist ability triggers, returning it from your graveyard to the battlefield without a -1/-1 counter on it due to its replacement effect
3. Resolve the Krark-Clan Ironworks ability
4. Repeat

Results

• Infinite creature ETB
• Infinite creature LTB
• Infinite colorless mana
• Infinite death triggers
• Infinite draw triggers
• Infinite rummaging
• Infinite creature sacrifice triggers
• Infinite self-discard triggers
• Infinite artifact ETB
• Infinite artifact LTB
• Infinite artifact sacrifice triggers