Cabal Stronghold + Steward of the Harvest + Umbral Mantle

Mana needed: {3}

BG identity

Commander legal

The 3 combo pieces

• Cabal Stronghold
• Steward of the Harvest
• Umbral Mantle

What must be in place

You control at least six basic Swamps.

How to execute it

1. Activate the creature with Umbral Mantle attached using Cabal Stronghold's ability by paying {3} and tapping it, adding at least six {B}.
2. Activate the creature by paying {3} and untapping it, giving it +2/+2 until end of turn.
3. Repeat.

What the combo produces

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