The Prydwen, Steel Flagship + Sword of the Meek + Queen Allenal of Ruadach + Extruder
The Prydwen, Steel Flagship
Sword of the Meek
Queen Allenal of Ruadach
Extruder
Infinite creature ETBInfinite creature tokensInfinitely large creature until end of turnInfinite +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 Soldier creature token.
When the Soldier enters the battlefield, Sword of the Meek triggers, returning Sword of the Meek from your graveyard to the battlefield attached to the Soldier.