Idol of Endurance + Goblin Welder + Intruder Alarm + Gleaming Barrier + Krark-Clan Ironworks

Prerequisites

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Steps

1. 1Sacrifice Gleaming Barrier to Krark-Clan Ironworks, generating and from the treasure.
2. 2Activate Golbin Welder by tapping it, sacrificing Idol of Endurance and returning Gleaming Barrier from the graveyard to the battlefield and triggering Intruder Alarm, untapping Goblin Welder and leaving floating.
3. 3Activate Golbin Welder, sacrificing Gleaming Barrier and returning Idol of Endurance to play, exiling Gleaming Barrier to Idol of Endurance's trigger and adding through the treasure, leaving floating.
4. 4Activate Idol of Endurance for and cast Gleaming Barrier without paying its mana cost, triggering Intruder Alarm and untapping Goblin Welder, leaving floating.
5. 5Repeat for infinite colored and colorless mana.

Effects

• Infinite colored mana
• Infinite colorless mana
• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers
• Infinite untap of creatures