Malkuth raid is very unique that you need one of each attack types to groggy her. So naturally your Striker slots are filled with anniversaries (or Aru for red attack because D.Hina has bad affinity), and a Special mass healer to back them up. The best option for damage dealers tend to be the most powerful members of different factions, but for the healer, it's Magical Girl Reisa a.k.a. Thermit Pink.