She can be useful for the last stage Seaason 1, her spirit link will save entire allies. But only need 1x, or also you can pick Gunnar instead.
I’m seeing Bane is not yet maxxed his skill, see here how to make it happen easy:
[Master] - Hero Level Maxed but Special Skill is Not
Max his skill to make his full potential special skill hit and blind effect.
And also Nashgar and Valen.
Advice and suggested is 2-3x 3* maxxed, then work on 4* heroes.
I will level plan each color:
Red: Hawmoon, Azar-C, wait for 4* red… in no, then Jahangir is good for turney and high attack stat for Event Challage
Blue: Finish Valen skill, Gunnar, Ulmer, Grimm, Sonya.
Green: Belith, Berden-C, Melendor, 2nd Berden, Ishhtak
Yellow: Finish Bane skill, Kailani
Purple: Tyrum, Regular Renfeld skill maxxed on 3rd tier (no need to be maxxed), then finish Renfeld-C to maxxed.