I just made a homebrew using content from MonkeyDM and ran into a slight issue. The ability says the creature can make a save against 8 + proficiency + Charisma modifier, but when I checked the character sheet, it wasn't the correct number. My character has a +2 charisma is level 6, so his proficiency is 3, so it should have added up to 13, but it showed 16. I don't see a way to adjust this under the action tab of the homebrew ability, and there is no way to adjust the save from the character sheet. Does anyone know how to fix this? I know homebrew has equations and commands to do and calculate different things, but I don't know what the one for save dc is.

What type of homebrew is it? Subclass/Race, Magic Item, what?

Subclass for Fighter

You have to set it up like this:

It could be either a Spell or General action, and I don’t know what level or what type of saving throw it’s sposta be, so I left those blank.

Thank you!