Anzrag, the Quake-Mole, and Fog

Prerequisites

• Anzrag, the Quake-Mole on the battlefield
• Fog in hand
• Anzrag does not have summoning sickness
• An opponent controls an untapped creature
• available

Steps

1. Activate Anzrag by paying , causing opponents to block Anzrag if able this turn
2. Cast Fog by paying , preventing all combat damage that would be dealt this turn
3. Declare Anzrag as an attacker, attacking an opponent who controls a creature
4. The opponent is forced to block Anzrag, triggering Anzrag, untapping all creatures you control and causing you to get an additional combat phase after this one
5. Any combat damage that would be dealt is prevented due to Fog
6. Repeat from step 3 each combat phase

Results

• Infinite combat phases
• Infinite untap of creatures you control
• Infinite mana creatures you control can produce