Hi, nice to meet you too. Sure, but actually there is not enough node slot for me now to puts all trios I want. Anyway, I will upload it for you first. 😁
Imo, V2 and V4 should be maxed first since their max level will reduce their cooldown to 2 minutes. This will make it easier to perform combo skills. Then the rest can be gradually enhanced.
Imo, if you love that class in terms of playing style, you should keep going with it. I decided to move to Kanna not because Sia has been nerfed or any, but because I want to play Kanna even if she is not considered at top in the table. Also, so far, we have buffed and nerfed classes several times, so I think Sia should get some buffs in the future for sure.