Mauvika c1 or r1

So with a potential mauvika rerun coming up I was wondering what I should pull for (for context I already have mauvika but no cons or sig weapon). I’m currently playing her in a team with xilonen Bennett and furina so I was wondering if going for c1 is better than r1 for the 25% fighting spirit accumulation boost because I only have the 1 natlan character on my team