When she uses any of her mobility ability throw a grumpy bomb close to u so u can stun her and kill her. When she use the ice block ability, put a grumpy bomb next to her and surround her with bomb. Then when she comes out detonate all the bombs.
Two Sticky Bombs will down an Evie, hit your shots. If you anticipate being rushed put down a Grumpy Bomb. If you need to disengage use Poppy Bomb, then you need to finish the job before it finishes you.