So, I was just curious if anyone happened to know how to apply a curse of lycanthropy onto a character on DnD Beyond? I know you can add "Blood of Lycanthropy" into your inventory, but it doesn't apply any changes or make you into a lycanthrope. I've been looking, and have been unable to find out how. Any suggestions or, preferably, on how to apply this curse and the subsequent changes to my character?

Hey there!

I think the easiest way to implement this is to create a custom Feat that you can add to your character, and give it a "activation" use, so that you can tick the box on the D&D beyond character sheet to indicate the change. There's nothing that automatically causes the stat changes, but it will help give some guidance and quicklinks. 

The best way to represent the temporary stat changes is to make a homebrew magic item that you can equip and unequip as necessary.