Urban Daggertooth + Triskelion

Urban Daggertooth

Triskelion

How it works

1. Activate Triskelion by removing a +1/+1 counter from it, dealing 1 damage to Urban Daggertooth.
2. Urban Daggertooth triggers, putting a +1/+1 counter on itself and Triskelion.
3. Repeat.

This clever self-sustaining loop relies on a clever exchange of counters between Triskelion and Urban Daggertooth. Triskelion uses its own activated ability to deal 1 damage directly to Urban Daggertooth, which happily triggers its enrage ability. Because Urban Daggertooth proliferates whenever it takes damage, you can place a +1/+1 counter right back onto Triskelion to replace the one it just spent, keeping the cycle going indefinitely and generating as many counters and proliferations as you desire.