Bumping this, for consideration for the next update.
Cloak of charisma: Would say, it is just another junk item for the loot table to get instead of normal loot. Since charisma potions are many, scrolls are also available. But since we got the waraji and a few such other items, it can fit.
Cloak of protection: There are already a large number of universal save items, but i am guessing for some folks the cloak is where it is supposed to be:P (Especially with the knightly cloak becoming quite a rare drop.)
Greater loak of Charisma: I would say this needs some rebalancing. The use of it is quite limited, it destroys upon using up the charges and basicly it is mostly good for paladins, blackguards, maybe sorcerers. (I think the influence bonus and the malus need a bit of rebalance)
Greater cloak of protection: seems like again an item that is supposedly just switch out an existing item slot for a less used one.
Lord's cloak: The once common knightly cloaks updated version. I actually find it legit, though probably could use a better name! (templars cloak maybe? or something similar, to make its connection to the knightly cloak or something, but perhaps that is just me!)
Soldier's cloak: Common item. Nothing really to add, either added or not I doubt it makes much of a difference.
Cloak of Eyes: I find this intriguing, for some reason with its name i find it offering less than I expect. However maybe a "better" version can also be made. Only the light effect seems to be a bit on the low side i would say.
Amulets of Heart: Dunno, why you added all these maluses. The rangers have the armour, the huntas amulet and the caliban bracers. (Rangers armour both lesser and greater.) Beside the caliban bracers none of them offers any malus. So I would say the maluses are not really required, perhaps beside for the third tier one, but even there it would need some lessening. As this way just like with most ranger items they would just become....switch out items.(And even without the maluses they most likely will.)
Duelist belte: I think you switched the skills on the master duelists belt, is it not supposed to be 5 discipline and parrry 4?(considering the normal duellist belt)
Mark of the Hawk: Seems a nice enough item, but something seems amiss. Maybe a +1 to will save? To make it consistent with the Talon bracers?
Tunnel ranger belt:
Darkvision seems dunno, shouldn't tunnel dwellers already have something similar? also two feats seems a bit too much. Maybe a bit of tweaking adding something else? (Like discipline?)
Defender of Purity:
Seems very similar to the guardian shield.
Shield of the Raptor: Seems completely not worth it. As in would just be another placeholder item in the loot table. The maluses are too much, the bonuses are not worth it considering that even crafted shields are better.(allthough the will save on a shield is rare)
Razors Edge: Same argument as Raptor shield, just with parry. Also only really useable for shield parry guys. Who are not that many. (And even then it really is not that needed)
Sterkt Hjerte: Seems an updated and better version of the Four moon. Nothing pro nothing against. Seems a regular non common fitting item. Not too powerful, and surprassing its crafted verions.(Mostly)
Shards of Nilfheim: Well...this one dunno, seems to be a rare item, and for what it is worth, it offers basicly nothing.
The cold resistance is really not worth it. The AC vs slashing can be gained from other sources. Would say that the current version would make it into useless, and only again a placeholder and another junk item to sell, but for decent gold. Nothing much else. Would tweak this to make it actually have a use in some cases.(Maybe up the cold resistance?)
Nice thoughts, and sorry if my words may come up a bit harsh, but as i see many of these items are either too punishing to employ, or outright not worth it if you compare them with either their crafted versions or already existing items. They would just become like the once completely mass found and mass sold Istavan the Sage's book.(When it had the -2 intelligence!, completely useless)
The ones though that show promise, i would say you deliberatly downplayed on the bonus part. I would say do not hold back that much. Just compare it with already existing items, especially the bonus spell slot giving items. Yes of course a number of them is rare. But if there are without any malus, hell they even give bonus to skills spell slot items, I am not sure why you would punish the paladins even further. Since a well played/RP-ed paladin already has it hard. Just take a look at all the bonus spell slot giving items and tweak it based on them. (Reference Hunta's amulet)