The Finisher is a character I made over the course of a couple days, he's got some good things, and some bad things.

LOADOUT:
Infinite Finished Gun. Yeah, this is literally the only item he starts with.

PROS:
Starts with Infinite Finished Gun
Increased reload speed
One ammo per clip max, making the Finished Gun really good
Increased reload speed makes one shot guns really good, because they already have one ammo per clip

CONS:
Starts with no hearts and 2 armor
Starts with 9 curse
Slow
One ammo per clip max, no matter what weapon he's using
Because of his max ammo per clip, he can't use automatic guns very well
All his bullets are half sized

INSTALLATION INSTRUCTIONS:
Download and install Mod the Gungeon: https://modthegungeon.eu/
Download Kyle's custom character mod: https://modworkshop.net/mod/24802
Delete mods.txt in the mods folder
Run the game, and then turn it off. This should create a CustomCharacterData folder in the game's files
Download the .zip file from this mod page
Put it in the CustomCharacterData folder
Extract it, and put the folder inside it into CustomCharacterData (If you're using 7zip, you can use the "extract here" option instead)
Load up the game. The Finisher should be on the right side of the breach

If you have any ideas for new characters that use vanilla items, I've been bored a lot lately, so I'll make them probably (I'm too lazy for spritework tho, so it'll probably just be a pallet swap of whatever character I use as the base)