Phenax, God of Deception + The Walls of Ba Sing Se + Umbral Mantle

Mana needed: {3} at least

UB identity

Commander legal

The 3 combo pieces

• Phenax, God of Deception
• The Walls of Ba Sing Se
• Umbral Mantle

How to execute it

1. Activate The Walls of Ba Sing Se by tapping it, causing a player to mill at least thirty cards.
2. Activate The Walls of Ba Sing Se by paying {3} and untapping it, giving it +2/+2 until end of turn.
3. Repeat as mana allows.

What the combo produces

• Near-infinite mill
• Near-infinite self-mill