Originally Posted by
Rissan4ever
What this all boils down to is: your chapter can have as many Fellblades as you want. If their fluff says they have a lot and have been maintaining them since the Heresy, then they have a lot. If their fluff says they don't have a lot, or any, then they don't. It's your chapter; do what you want.
Personally, I don't like Fellblades. As an IG player, I have sort of proprietary feelings about Imperial superheavy tanks. Baneblades and all the assorted variants belong to the Imperial Guard, and they're one of the things that help make the Guard distinctive. When the Fellblade came out , I felt like the Marines were taking something that made the Guard cool and saying, "Look, we have one like that... only better! HAHAHA!"