The Prydwen, Steel Flagship + Sword of the Meek + Extruder + Chatterfang, Squirrel General
The Prydwen, Steel Flagship
Sword of the Meek
Extruder
Chatterfang, Squirrel General
Infinite creature ETBInfinite creature tokensInfinite +1/+1 counters on creatures you control
How it works
Cast Sword of the Meek by paying 2.
When Sword of the Meek enters the battlefield, The Prydwen triggers.
Holding priority, activate Extruder 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.