[Zeus] 150 with min arms and good gems!

[Prabhu]

I'm not sure how important Isis is for the rest of RB, so I can't comment on that but I just don't think she is as critical as other high priority stuff anyway. New World PvP is mostly dictated by inspires/other buffs and/or a 10+ level advantage(which requires faster map progression). In my book, Isis or Phaethon won't be needed for both of these.

All these are with max. 5 training space in mind. If that's void, more heroes can be used, np.