The Gunsmith
Past: After losing a loved one he met in the Gungeon (Presumably the Blacksmith) to the father of the High Dragun, The Blacksmith did NOTHING about it at first in pure fear. The Blacksmith heads back to the past to fight the Dragun’s father. Should he be successful, he gets to continue his life with his love.
He doesn't start with any blanks, and is slightly slower.
It's got 30 ammo per clip, is a machine gun, and ignites oil.
Sprays oil in a line
Grants an extra heart
Deadblow, does 20 damage to enemies and slams around in a room with a secret room