I like the ideas but there are a issues.
I will leave my thoughts on them below but I also believe that AP itemization is currently bloated to the heavens in its current iteration. You currently literally get everything you need on the same item these days. CDR is on the vast majority of pieces now and while that may smooth out how mage damage increases over the course of a game it also removes one of the few levers Riot had to create ability based classes as a whole. This means that AP based champions all scale off of the same stats in comparison to how the AD based ones function. This unfortunately makes creating specialized items for them much harder from a balance perspective. The root of this issue primarily stems from of how the original item pool was designed. AP was originally intended to simply increase the effect of your buttons and that's it, there was no other effective way to boost your abilities unless you were ryze (mana scaling).
This can in my opinion be fixed by riot deciding to get their sh*t together and doing something to actually solve it. If that is deciding what proper AP itemization for each class of champion, meaning that each AP subclass has a primary stat focus outside of AP (CDR, Mana, Spell pen, tank stats, ect) and having them itemize accordingly while creating proper drawbacks for each class leaving their designated itemization or just making the non mage types simply scale properly off of the items already in game. Preferably I would like to see the better built itemization because that lets people play their way and potentially making fun new item sets for champs. Realistically, I really don't care because Riot has a ton of issues properly balancing as it is so as long as my AP bruisers feel like they should want to go in and beat face while doing a mix of spell damage and melee attacks its all gravy as long as they scale like they should.
Freljordian Shield
Previously Riot has decided that passive auras are no good (for clarity's sake) and they stated that they will no longer make aura based items like this. Hell we saw a giant
rework while
is barely effective now because of this same thing. In addition Riot also removed Abyssal Scepter (provided AP and MR with a pen effect) so I highly doubt the permafrost prison, while an interesting idea, would ever make it to live as is. Not to mention that we currently already also have
and
which aim to function in a similar manner (slow enemies to allow chase/peel).
Changing it to become something that's a bit more unique may be a better option. An active ability (with cool frozen particles effects surrounding the champion) that lasts for x seconds slowing all enemies in it by y% or something along those lines might be a better fit for what you want (more chase/peel when needed). By removing the passive always on your item has would give you more high/low points to work around and I think would fit better thematically with a durable AP based champion.
I think the item may also have an issue with too many good stuff stats on it for its cost. The item give you a little bit of everything which makes it a bit boring and removes flexibility in building if your champion is (why SHOULDN'T I build this???). CDR most likely should be removed and the
swapped with
.
Bandle Shield
This feels like its supposed to be the AP version of
. I like that it sort of is because it gives melee based champs a means to defend better against stuff like
while in top lane. This item also feels bit stat bloated in that it literally provides everything a tank would want in an item (ALL THE DEFENSIVE STATS). I would strongly suggest you swap the
with
and make it function as an AP Cape.
Talisman of the Uloans
It has 25 spell pen and is an alternative to
. I Like the idea of having an alternative to Book but we don't need to give MORE spell pen to champions. Giving more spell pen means that most likely even with the reduced AP in comparison to book it would still be a better pick because of how strong pen is plus this then lets you eat a bit more damage. You can run into quite a few issues there when certain melee champs build it then IE tank
. Since were going for a Book alternative I think instead of just giving more pen there should be a secondary passive on this alongside the base 15 spell pen.
In a perfect world each class would have itemization that they would want to build