OK, I received an item (Homebrew) that modifies my spell/attack (additional +5) and save DC ( to 24)...

How would I go about putting this data into my character sheet here in DnD Beyond so it adds it and shows it (also so it will be used in Discord and such)?

Wow, that’s a humongous boost.

You cannot set the save DC to 24, but you can add a fixed number just like the +5 to spell attacks.

You need to create a magic item and add the following modifiers:

• Modifier: Bonus->Subtype: Spell Attacks->Fixed Value: 5
• Modifier: Bonus->Subtype: Spell Save DC->Fixed Value: 5

That will add a +5 bonus to whatever your character has for both a Spell Attack Modifier, and a Spell Save DC.

Thank you! 🙌🏼