Fiendlash + Guilty Conscience

RW identity

Commander legal

The 2 combo pieces

• Fiendlash
• Guilty Conscience

What must be in place

An additional indestructible creature on the battlefield.
All permanents attached to that creature.
You have a way to deal damage to that creature.

How to execute it

1. Deal damage to the indestructible creature.
2. Fiendlash triggers, causing the creature to deal damage equal to the creature's power to target player or planeswalker.
3. Guilty Conscience triggers, dealing that much damage to the creature.
4. Repeat.

What the combo produces

• Infinite damage