Clock of Omens, Mycosynth Lattice, Shrieking Drake, and Grinding Station

Prerequisites

• Clock of Omens on the battlefield
• Mycosynth Lattice on the battlefield
• Shrieking Drake in hand
• Grinding Station on the battlefield
• You control a permanent that can tap to produce at least

Steps

1. Activate a permanent you control by tapping it, adding at least
2. Cast Shrieking Drake by paying
3. Shrieking Drake enters the battlefield, triggering itself and Grinding Station
4. Resolve the Grinding Station trigger, untapping it
5. Activate Clock of Omens by tapping Grinding Station and Shrieking Drake, untapping the mana-producing permanent
6. Resolve the Shrieking Drake trigger from step 3, returning itself from the battlefield to your hand
7. Repeat

Results

• Infinite ETB
• Infinite LTB
• Infinite mana permanents you control can produce
• Infinite storm count
• Infinite untap of permanents you control
• Infinite colored mana