Prerequisites
- Karn, Legacy Reforged on the battlefield
- Lithoform Engine on the battlefield
- Clock of Omens on the battlefield
- Staff of Domination on the battlefield
- Grim Monolith on the battlefield
- You control at least three additional artifacts
- available
Steps
- At the beginning of your upkeep, Karn triggers
- Holding priority, activate Lithoform Engine's first ability by paying and tapping it, copying Karn's ability
- Resolve the copy of Karn's ability, adding for each artifact you control that cannot be spent to cast nonartifact spells
- Activate Clock of Omens by tapping Staff of Domination and Grim Monolith, untapping Lithoform Engine
- Activate Staff of Domination's first ability by paying , untapping it
- Activate Grim Monolith's second ability by paying , untapping it
- Repeat from step 2
Results
- Infinite colorless mana that cannot be spent to cast nonartifact spells
- Infinite mana artifacts you control can produce
- Infinite untap of artifacts you control
Required Cards 5
Karn, Legacy Reforged
Legendary Artifact Creature — Golem
Lithoform Engine
Legendary Artifact
Staff of Domination
Artifact