Defiler of Vigor, Spike Feeder, Molting Skin, and Semblance Anvil

Prerequisites

• Defiler of Vigor on the battlefield
• Spike Feeder on the battlefield
• Molting Skin in hand
• Semblance Anvil on the battlefield
• An enchantment exiled by Semblance Anvil
• You have at least 3 life

Steps

1. Pay 2 life to cast Molting Skin
2. Defiler of Vigor triggers, putting a +1/+1 counter on each creature you control
3. Remove a +1/+1 counter from Spike Feeder to activate it, gaining 2 life
4. Resolve Molting Skin
5. Return Molting Skin to your hand to activate it, regenerating any target creature
6. Repeat

Results

• Infinite +1/+1 counters
• Infinite storm count