Nevinyrral's Disk, Darksteel Forge, Mycosynth Lattice, and Unwinding Clock

Prerequisites

• Nevinyrral's Disk on the battlefield
• Darksteel Forge on the battlefield
• Mycosynth Lattice on the battlefield
• Unwinding Clock on the battlefield

Steps

1. Mycosynth Lattice makes eveything an atrifact, Darksteel Forge makes all of your artifacts indestructible
2. Nevinyrrall's Disk destroyes all artifacts except yours because yours are indestructable
3. Unwinding Clock allows this to happen every untap step

Results

• Destory all opponent's permanents every turn