Black Market Tycoon + Goldspan Dragon + Umbral Mantle + Xorn

RG identity

Commander legal

The 4 combo pieces

• Black Market Tycoon
• Goldspan Dragon
• Umbral Mantle
• Xorn

What must be in place

Umbral Mantle attached to Black Market Tycoon.
Black Market Tycoon does not have summoning sickness.

How to execute it

1. Activate Black Market Tycoon by tapping it, creating two Treasure tokens.
2. Activate both Treasure tokens by tapping and sacrificing them, adding {4}.
3. Activate Black Market Tycoon by paying {3} and untapping it, giving itself +2/+2 until end of turn.
4. Repeat.

What the combo produces

• Infinite colored mana
• Infinite mana creatures you control can produce
• Infinite Treasure tokens
• Infinite untap of creatures you control
• Infinitely large creature until end of turn