Prerequisites
- Cleric Class on the battlefield
 - Angelic Chorus on the battlefield
 - Herd Baloth on the battlefield
 
Steps
- Gain life
 - Cleric Class triggers, putting a +1/+1 counter on Herd Baloth
 - Herd Baloth triggers, creating a creature token
 - When the creature token enters the battlefield, Angelic Chorus triggers, causing you to gain 5 life
 - Repeat from step 2
 
Results
- Infinite ETB
 - Infinite lifegain triggers
 - Infinite lifegain
 - Infinite creature tokens
 - Infinite +1/+1 counters on a creature
 
Required Cards 3

Cleric Class
Enchantment — Class

Angelic Chorus
Enchantment

Herd Baloth
Creature — Beast