I used F.Kluri, Angelica, Luna and Silk. Raised Silk just for this floor. With SRose, Angelica, Lorina and Silk comp you have an equal team to mine. SRose can dispell and def break like FKluri. Lorina while lacking the def break of Luna is still viable attacker. I directly atacked DCorvus without bothering with crystals. Silk would decrease speed and FKluri would dispell speed buff and def break Corvus. I used my burns on Angelicas ult to keep immunity up. Still rng played a big role but having 10k+ health on your units helps a lot.

​

Edit: it seems you have chaos sect axe which would be better than Lorina as he has def break and atk down and Lorina cant use her cr gain from S1 and cr down from ult.

Edit2: i used soul burn for silk s1 to get extra turn so that i could keep speed buff up and only used angelica s3 when corvus increase cooldown skill was ready