Lithoform Engine + Sands of Time

Lithoform Engine

Sands of Time

How it works

1. At the beginning of your upkeep, Sands of Time triggers.
2. Holding priority, activate any number of permanents you control by tapping them, adding at least 3.
3. Activate Lithoform Engine by paying 2 and tapping it, copying Sands of Time's ability.
4. Resolve the copy of Sands of Time's ability, untapping all tapped artifacts, creatures and lands you control and tapping all untapped artifacts, creatures, and lands you control.
5. Repeat from step 2.