Helle there !

I'm new to homebrew and i'm struggling a bit. I want to add the feat "Poisoner" from Tasha's Cauldron of Everything to one of my subclass features but when I add a modifier to add a feat, only feats that appear in the Player's Handbook are available. Any help on that ? Is this even possible ?

Thanks for your help !

You won’t be able to add it. Feats cannot be added to subclass features, not even the ones on that list. You would have to recreate the feat as a feature. Or better yet, create an original feature so people could take both.

Oh, I thought I could add a feat as a modifier because when I add a modifier to my feature, i have the option to choose "Feat" in the modifier type menu.

Sorry, i'm not a native English speaker and i just want to be sure to understand you : You tell me to either copy/paste the feat as a class feature or homebrew a feat ? I don't understand the "original feature" part. EDIT : I understood what you were talking about, I added an additional feature and it worked as intended !

Thanks for your help !