[2022] any tips for beating the alibi protean?

i've been playing solo to grind progression more efficiently, and i think i have the hang of the protean levels now, except alibi. i've fought her 3 times, once with ela and twice with vigil (both level 10) and i always die when she's in her last phase. the amount of clones she can produce by then makes her really hard to cope with, in my opinion. is there something i'm missing?