Prerequisites
- Bloodthirsty Conqueror on the battlefield
 - Starscape Cleric on the battlefield
 
Steps
- Gain life
 - Starscape Cleric triggers, causing each opponent to lose 1 life
 - Bloodthirsty Conqueror triggers for each opponent that lost life
 - Resolve a Bloodthirsty Conqueror trigger, gaining 1 life
 - Repeat from step 2
 
Results
Required Cards 2

Bloodthirsty Conqueror
Creature — Vampire Knight

Starscape Cleric
Creature — Bat Cleric