Glissa, Herald of Predation, Krark-Clan Ironworks, Clock of Omens, and Lithoform Engine

Prerequisites

• Glissa, Herald of Predation on the battlefield
• Krark-Clan Ironworks on the battlefield
• Clock of Omens on the battlefield
• Lithoform Engine on the battlefield
• available

Steps

1. At the beginning of your combat phase, Glissa triggers, choosing the first mode
2. Holding priority, activate Lithoform Engine's first ability by paying and tapping it, copying Glissa's trigger
3. Resolve the copy of Glissa's trigger, creating two Incubator tokens
4. Activate Clock of Omens by tapping the Incubators, untapping Lithoform Engine
5. Activate Krark-Clan Ironworks by sacrificing an Incubator, adding
6. Repeat from step 2

Results

• Infinite colorless mana
• Infinite tapped creature tokens
• Infinite tapped Incubator tokens