Mabel, Valley Hero, and Basking Broodscale

Prerequisites

• Mabel, Valley Hero on the battlefield
• Basking Broodscale in hand
• available

Steps

1. Cast Basking Broodscale by paying its mana cost
2. When Basking Broodscale enter, Mabel triggers, putting a +1/+1 counter on Basking Broodscale
3. Basking Broodscale triggers, creating a creature token
4. When the creature token enters, Mabel triggers, putting a +1/+1 counter on Basking Broodscale Repeat from step 3

Results

• Infinite +1/+1 counters on a creature
• Infinite creature ETB
• Infinite colorless mana
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite creature tokens
• Infinite death triggers