R1 or Lauma

Based on the recent banners and for the upcoming banner, which is more important to get with Nefer? I have 60 pity but I'm on 50/50 so I'll just try to get either of the two if I win on Nefer. Which of these two will give me more damage for her, and if the sig is better, what teams/character should I use to replace Lauma. Thank you.