Liadri P2... how on earth?
If you can’t reach the safe zones due to cripple or just being slow, then count to 2, then dodge to avoid getting hit by the Shadowfall AoE. You can cripple/immobilise her if you find it hard to keep her off you. Cosmic Rifts will pull a while after they spawned on the field, if you can see one spawn, you generally get enough time to get there and kill it before it pulls. If you don’t kill it before it pulls, make sure there aren’t any shadows between you and the rift, or else it’ll pull you into a shadow.
If you have trouble with the cripple, you should try a Sigil of Purity on your weapons (chance to remove a condition on hit).
I am an engineer I did the kill lastnight. I had dual pistol and i baiscally just ran the edge of the middle safe zones in phase 2 with the condition remove and i used the medkit for emergency swiftness if needed i didn’t even need to dodge i just ran a constant circle. If your crippled you’ll have enough time to dodge in aswell if you run the edge of the center of the safe zone.
The fight is actually really easy it’s just learning the pattern and getting those cosmic rifts down which is the challenge.
As a thief running removal of cripple on dodge + 100% uptime on vigor the 2nd phase was not too bad when finally i realised the pattern of which the red circles are moving. Just keep running by the wall. Whatever class you are i recommend a ranged weapon, and if you have no CC ability, no cripple nothing, then you don’t have the greates chances..