Gatta and Luzzu + Triskelion + Hardened Scales

Gatta and Luzzu

Triskelion

Hardened Scales

How it works

1. Cast Gatta and Luzzu by paying 2.
2. When Gatta and Luzzu enters the battlefield, it triggers, targeting Triskelion.
3. Activate Triskelion by removing a +1/+1 counter from it, targeting itself, but instead putting two +1/+1 counters on it due to Gatta and Luzzu and Hardened Scales.
4. Activate Triskelion by removing a +1/+1 counter from it, dealing 1 damage to any target.
5. Repeat from step 3.