When Sword of the Meek enters the battlefield, The Prydwen triggers.
Holding priority, activate Umbral Collar Zealot by sacrificing Sword of the Meek.
Resolve the Prydwen trigger, creating a 2/2 Human Knight and a 1/1 Squirrel creature token.
When the Squirrel enters the battlefield, Sword of the Meek triggers, returning Sword of the Meek from your graveyard to the battlefield attached to the Soldier.
Repeat from step 2.
This clever loop relies on a clever bridge between artifact creation and recursive triggers, turning the graveyard into a reliable launchpad. As long as you can cycle Sword of the Meek back and forth, The Prydwen, Steel Flagship steps in to generate a fresh 2/2 Human Knight whenever another nontoken artifact enters your control. At the same time, Chatterfang, Squirrel General multiplies your token output by doubling every single creature creation event into an accompanying swarm of 1/1 green Squirrels. This sudden influx of 1/1 bodies triggers Sword of the Meek's automatic return from the graveyard, equipping itself fresh while Umbral Collar Zealot stands ready to sacrifice pieces, surveil your library, and keep the engine turning infinitely.