Jorn, God of Winter // Kaldring, the Rimestaff + Rimefeather Owl + Lithoform Engine

Prerequisites

• Jorn does not have summoning sickness.
• Snow permanents you control can tap to produce at least .

Steps

1. 1Activate Rimefeather Owl by paying , putting an ice counter on Lithoform Engine, causing Lithoform Engine to become a snow permanent.
2. 2Move to your combat phase, and declare Jorn as an attacker, triggering its ability.
3. 3Holding priority, activate all mana producing snow permanents you control by tapping them, adding at least .
4. 4Activate Lithoform Engine's first ability by paying and tapping it, copying Jorn's triggered ability.
5. 5Resolve the copy of Jorn's ability, untapping all snow permanents you control.
6. 6Repeat from step 3.

Effects

• Infinite mana snow permanents you control can produce
• Infinite untap of snow permanents you control