Mycosynth Lattice, and Clarion Conqueror

Prerequisites

• Mycosynth Lattice on the battlefield
• Clarion Conqueror on the battlefield

Steps

1. Mycosynth Lattice makes all permanents artifacts
2. Clarion Conqueror prevents anyone from activating the abilities of any permanents on the battlefield, including mana abilities

Results

• Lock on all activated abilities (including lands)