Fiendlash + Ill-Tempered Loner // Howlpack Avenger

Prerequisites

You have a way to deal damage to Ill-Tempered Loner // Howlpack Avenger.

Steps

1. Deal damage to Ill-Tempered Loner // Howlpack Avenger
2. Fiendlash and Ill-Tempered Loner // Howlpack Avenger trigger.
3. Resolve the Ill-Tempered Loner // Howlpack Avenger trigger, dealing damage to any player or planeswalker.
4. Resolve the Ill-Tempered Loner // Howlpack Avenger trigger, dealing at least 1 damage to itself.
5. Repeat from step 2.