Crystalline Crawler, Dancing from Dark to Dawn, and Whitemane Lion

Prerequisites

• Crystalline Crawler on the battlefield
• Dancing from Dark to Dawn on the battlefield
• Whitemane Lion in hand
• available

Steps

1. Cast Whitemane Lion by paying its mana cost
2. Dancing from Dark to Dawn's first ability triggers, putting two +1/+1 counters on Crystalline Crawler
3. Resolve the Whitemane Lion spell
4. When it enters, it triggers, returning itself from the battlefield to your hand
5. Activate Crystalline Crawler twice by removing two +1/+1 counters from it, adding
6. Repeat

Results

• Infinite ETB
• Infinite LTB
• Infinite storm count