Hi. I've already Kael at 6*. I have everything ready for the 2nd 6* champion. The question is: who?

I've not been very lucky with the shards, so, the "stars" of my current roster are:

Ronda, Warmaiden and Spirithost at 50; Warpriest, Jizoh, Dilgol, Soulbond Bowyer, Trumborr at 40. That's it.

Any advice? The first one I thought of was obviously Ronda, but after 15 days of using her, I'm not so sure about it.

Thanks in advance.