Smile at Death + Strionic Resonator + Corridor Monitor + Krark-Clan Ironworks

Prerequisites

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Steps

1. 1At the beginning of your upkeep, Smile at Death triggers.
2. 2Holding priority, activate Krark-Clan Ironworks by sacrificing Corridor Monitor, adding .
3. 3Activate Strionic Resonator by paying and tapping it, copying Smile at Death's trigger.
4. 4Resolve the copy of Smile at Death's trigger, returning Corridor Monitor from your graveyard to the battlefield.
5. 5When Corridor Monitor enters the battlefield, it triggers, untapping Strionic Resonator.
6. 6Repeat from step 2.

Effects

• Infinite colorless mana
• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers
• Infinite recursion of some creature cards in your graveyard