Bastet's buffs are kinda important for now on your team and she does give a little boost for your full burst if you can time it right
But if you're confident enough in your grid and himes then you can probably place Rangda in (I prefer Rangda more than Meretseger even though I don't have her, plus Rangda can do that 5x damage every 5 turns, so she is like the SR version of Susanoo lol)