Basically the Mighty Glacier.
More of the ultimate defensive choice but not much else.
This set would have an defense in every type but wouldn't be higher than type specific armor (its elemental would be lower than Grey Owlite and so forth). (no normal defense)
It would only have a Max freeze status resist, and a Max fire penalty.
It's gun/sword ASI would be debuffed by Med, Bomb CTR debuff by Med, MSI debuff VH, and Universal CTR debuff Med (making bomb debuff VH)
The only perks would be Sword and gun damage by Med.
(all stats and debuffs are cumulative from the full set and thus each piece has half what is described here)
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The Armor appearance would appear as a heavily frosted light blue (polar twilight blue) Warden armor.
The helmet would seem more like an Almirian Crusader with horns like the Dread Skelly and side wings like Valkyrie. (would also be frosted and would have and icicle off one of the horns)
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This set would be crafted up from the Skelly line and would only be available as a 5 star armor.
The basic premise of this armor is to do massive damage in slow hits and take little damage, the largest struggle would be to catch what you are after (mobile monsters would be the largest threat as are the ones that normal speed players can escape from (greavers, mecha knights).
Instead of crafted from skelly perhaps from plate armor? Plate mail is the ultimate in defense but doesn't have much going for it.
Also, the MSI should only be a medium penalty. Maybe increase sword damage to VH and keep gun to medium? The way you have it set up is: -2 - 2 - 4 - 2 + 2 for a total of -8 in terms of debuff. Is that -8 balanced with the armor being defending everything (except normal), but badly?
Let's see what we can do to make it has a net of 0.
-8. +2 MSI (for only a penalty of med). -6
-6 +2 DMG for swords. -4
So we don't have to worry about bonuses too much anymore. We could throw more defenses into the mix - maybe normal defense? If not that, then maybe resist another status? Curse maybe?
(Technically you gain more bonuses and whatnot because gun and sword bonuses can be separate bonuses, but I sorta kept them as one bonus for simplicity)