Cleric Class, Herd Baloth, and Soul's Attendant

Prerequisites

• Cleric Class on the battlefield
• Herd Baloth on the battlefield
• Soul's Attendant on the battlefield
• Cleric Class is at least level two
• You have a way to gain life

Steps

1. Gain any amount of life
2. Cleric Class triggers, putting a +1/+1 counter on Herd Baloth
3. Herd Baloth triggers, creating a 4/4 Beast creature token
4. The Beast enters the battlefield, triggering Soul's Attendant, causing you to gain five life
5. Repeat from step 2

Results

• Infinite +1/+1 counters on Herd Baloth
• Infinite creature tokens
• Infinite ETB
• Infinite lifegain
• Infinite lifegain triggers