Shaile, Dean of Radiance // Embrose, Dean of Shadow, Crystalline Crawler, and Pemmin's Aura

Prerequisites

• Shaile, Dean of Radiance // Embrose, Dean of Shadow on the battlefield
• Crystalline Crawler in hand
• Pemmin's Aura on the battlefield
• Shaile does not have summoning sickness
• available

Steps

1. Cast Crystalline Crawler by paying
2. Activate Shaile by tapping it, putting a +1/+1 counter on Crystalline Crawler and any other creature that entered the battlefield under your control this turn
3. Activate Crystalline Crawler's first ability by removing a +1/+1 counter from it, adding
4. Activate Pemmin's Aura's first ability by paying , untapping Shaile
5. Repeat from step 2

Results

• Infinite +1/+1 counters on other creatures you control that entered the battlefield this turn