Hard to Ignore a Skilled Defense

Hard to Ignore and Nerves of Steel have the Skill trait, so can be found with Training Regimen. Stay Ready for a Fight flipping down to alter-ego to use Training Regimen without having to discard a card.

Psychic Misdirection does damage that is not an attack, avoiding retaliate. Psi-Flail Strike adds stun to Psylocke's toolbox, with her own Psionic Redirect already letting her confuse an enemy.

I Can Do This All Day opens up potential for defending multiple times in a single villain phase. With Armored Vest and Defensive Conditioning her DEF stat becomes a respectable 4.

With her smaller hand size, IPAC can fly in a couple of cards. Her defensive abilities and Telepathic Suggestion to cancel a treachery make this a more reasonable risk.

This deck is designed to assist with a little bit of everything in multiplayer (THW, ATK, DEF). Psylocke is about finesse, not flash. Still, she's hard to ignore.