Fiendlash + Barbed Servitor + Pariah's Shield

Fiendlash

Barbed Servitor

Pariah's Shield

How it works

1. Deal damage to Barbed Servitor
2. Barbed Servitor and Fiendlash trigger.
3. Resolve the Barbed Servitor trigger, causing an opponent to lose life equal to the damage dealt to Barbed Servitor.
4. Resolve the Fiendlash trigger, targeting you, but dealing damage to Barbed Servitor instead due to Pariah's Shield.
5. Repeat from step 2.