Who would you say is personally Psylocke's biggest antagonist/rival?
Slaymaster ripped out her eyes
Mojo made her his play thing
Spiral took Mojo's meddling a step further with the body swap
The Hand brainwashed her
Sabretooth tried to gut her in the 80s, and then really gutted her in the 90s
Kuriargi kidnapped and brainwashed her
Shadow King tricked her into crippling the world's telepaths and nearly turned her mind into mush and has hunted her down ever since she trapped him (which she's done yet again in Uncanny X-Force)
Vargas killed her and (this was never clear to me, if Vargas had simply made a statue of her or actually confiscated her body and stuffed her like a trophy)
The Dark Celestial Seed imbued Archangel turned her into Death ever so briefly and betrayed her love
I mean, she's been seriously effed with over the years, what do you think qualifies as the worst of the worst?