Invisible Woman, Sue Storm, Soul's Attendant, and Heliod, Sun-Crowned

Prerequisites

• Invisible Woman, Sue Storm on the battlefield
• Soul's Attendant on the battlefield
• Heliod, Sun-Crowned on the battlefield

Steps

1. Gain life
2. Heliod triggers, putting a +1/+1 counter on the other Hero
3. Invisible Woman triggers, creating a creature token
4. When the creature token enters the battlefield, Soul's Attendant triggers, causing you to gain life
5. Repeat from step 2

Results

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