Patrolling Peacemaker + Bloodcrazed Hoplite + Coveted Falcon

Patrolling Peacemaker

Bloodcrazed Hoplite

Coveted Falcon

How it works

1. Activate Coveted Falcon by paying 1, turning it face up.
2. Coveted Falcon triggers, causing an opponent to gain control of Bloodcrazed Hoplite and causing you to draw a card.
3. Put a +1/+1 counter on Bloodcrazed Hoplite either by proliferating or by any other method.
4. Bloodcrazed Hoplite triggers, targeting any creature controlled by you or another opponent.
5. When the opponent commits that crime, Patrolling Peacemaker triggers, causing you to proliferate and put a +1/+1 counter on Bloodcrazed Hoplite.
6. Repeat from step 4.

This ingenious loop relies on a clever piece of rules interaction to repeatedly trigger itself, fueled by Patrolling Peacemaker and Bloodcrazed Hoplite. Once you hand Bloodcrazed Hoplite over to an opponent using Coveted Falcon's face-up trigger, any counter placed on the Hoplite causes its triggered ability to target an opponent's creature or card. Because that ability targets an opponent's thing, the opponent is legally committing a crime, which immediately triggers Patrolling Peacemaker's static-watching ability to proliferate. That proliferation adds a fresh +1/+1 counter right back onto Bloodcrazed Hoplite, restarting the entire chain for infinite triggers.