Arcbound Reclaimer, Iron Spider, Stark Upgrade, Mox Opal, Krark-Clan Ironworks, and Flux Channeler

Prerequisites

• Arcbound Reclaimer on the battlefield
• Iron Spider, Stark Upgrade on the battlefield
• Mox Opal in hand
• Krark-Clan Ironworks on the battlefield
• Flux Channeler on the battlefield

Steps

1. Cast Mox Opal by paying its mana cost
2. When you cast that spell, Flux Channeler triggers, putting one +1/+1 counter on Arcbound Reclaimer and at least two additional artifacts you control
3. Activate Mox Opal by tapping it, adding mana
4. Activate Krark-Clan Ironworks by sacrificing Mox Opal, adding
5. Activate Arcbound Reclaimer by removing a +1/+1 counter from it, putting Mox Opal from your graveyard on top of your library
6. Activate Iron Spider's last ability by paying and removing two +1/+1 counters from artifacts you control, drawing Mox Opal
7. Repeat

Results

• Infinite colored mana
• Infinite draw triggers
• Infinite proliferate
• Infinite storm count