Get in close quarters in rooms or tunnels to nullify her escape ability, hook her and body block the doors. Dont engage at range, she will keep you away with her knockback and out-DPS you.

Usually when Fernando has his shield up you should aim for his teammates and focus him down last. If you have nimble with Makoa you can walk through his shield and hook him on the left or right side before going for his teammates.

Body block her in close quarters like tunnels and houses she cant teleport as far then and even if she ice blocks after your hook, you should be able to still keep her from escaping if youre in compact space.

Shell spin through his potion to dodge damage and CC. Jump from side to side when you see him try to throw his snake. Damage him and hook him for the finisher, even if he uses his escape you should still be able to get him.