Great Oak Guardian + Nim Deathmantle + Soldevi Adnate

BG identity

Commander legal

The 3 combo pieces

• Great Oak Guardian
• Nim Deathmantle
• Soldevi Adnate

What must be in place

Soldevi Adnate does not have summoning sickness.
Nim Deathmantle attached to Great Oak Guardian.

How to execute it

1. Activate Soldevi Adnate by tapping it and sacrificing Great Oak Guardian, adding an amount of {B} equal to Great Oak Guardian's mana value.
2. When Great Oak Guardian dies, Nim Deathmantle triggers, causing you to pay {4} to return Great Oak Guardian from your graveyard to the battlefield, and attach Nim Deathmantle to it.
3. When Great Oak Guardian enters the battlefield, it triggers, untapping all creatures you control and giving them +2/+2 until end of turn.
4. Repeat.

What the combo produces

• Infinite black mana
• Infinite creature LTB
• Infinite death triggers
• Infinite ETB
• Infinite mana creatures you control can produce
• Infinite sacrifice triggers
• Infinite untap of creatures you control
• Infinitely large creatures you control until end of turn