Aether Storm + Mycosynth Lattice + Darksteel Forge

Aether Storm
Mycosynth Lattice
Darksteel Forge

Requires
All permanents on the battlefield.
Steps
  1. Aether Storm prevents creature spells from being cast
  2. Darksteel Forge prevents Aether Storm from being destroyed due to its ability
Results
Players cannot cast creature spells.