Why is Verso such a glass cannon?

[Der Großmann]

My party are Lune for healing and support HP 3,5k , Monoco for damage HP nearly 4k and then Verso at the same level as the other 2 with the exact points distribution and has barely 2,2k HP so he goes down almost instantly ,l've already beaten the game now l'm exploring the overworld and noticing he goes down for the count in like 2 or 3 hits, how can l increase Versos' HP pool?

[Ratsplat]

Check your Pictos. They give major stat buffs.

[lieutenantkirtar]

Also make sure you aren't using skills that reduce his HP.

[The HR Department]

Use luminas for the primary ability, and pictos for their secondary buffs, such as hp boost, for instance

[Tready]

2.2K hp is very low, and as others have said, you should bolster that with Pictos.

But also, Verso's gimmick is literally called "Perfection". He's powerful if you are consistently good with parries, dodges, and attack quick-time events. If you're using Lune for "healing and support" over damage output, then you maybe aren't good enough at those mechanics to use him effectively. I'm not disrespecting you by saying that, and I'm not telling you to "git gud" or whatever. I myself admit that I am not good enough at that timing to make Verso worthwhile, and I prefer Maelle instead

[Diabolical Taco]

Funny thing is I spent a good deal of the game purposely keeping Verso low hp to take advantage of certain combos. It's a viable strat if you can live with him being near death most of the time.