Smile at Death, Strionic Resonator, Corridor Monitor, and Krark-Clan Ironworks

Prerequisites

• Smile at Death on the battlefield
• Strionic Resonator on the battlefield
• Corridor Monitor on the battlefield
• Krark-Clan Ironworks on the battlefield
• undefined

Steps

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

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite colorless mana
• Infinite graveyard recursion of creatures with power 2 or less