How are shield strengths calculated?

FrancisCrawford · June 2020

Are there any good and current guides to how the strengths of various shields are calcuated in PvE? If not, could we please assemble one now?

This thread from a couple of years ago was probably accurate then, but many nerfs have happened since.

My thoughts start:

Annulment and its morphs Dampen Magic and Harness Magicka have always scaled off of max magicka alone. Further, Dampen Magic is now capped at 60% of base health, while Harness Magicka is capped at 50% of max health.
Exactly the same things are true of Conjured Ward and its morphs Hardened Ward and Empowered Ward respectively.
The Bastion champion point line buffs shield strength. However, it does NOT raise the max health cap for the skills listed above, so it is usually useless with those.
Does Bastion have any other limitations?
Do we know the exact fraction of max magicka for the Annulment and Conjured Ward shield strengths? (The 2018 thread linked above thought they were both in the 35% range.)
Steadfast Ward and its morphs seem to scale off of magicka and spell power the way most magicka skills do. Is that correct?
Do we know how the Healing Ward morph further scales off of missing health?

And finally, for the PvPers:

In most cases, Battle Spirit is applied AFTER all other calculations. Are there any exceptions to that general rule? (Perhaps the health caps?)

Dracane · June 2020

For no CP, Hardened Ward is 21% of your maximum magicka. For CP, it is the same, yet you have to add the % from Bastion on top of that 21%. For PvE, it is 42% of your magicka.

All other magicka shields also scale of a set % of your maximum magicka unless they state to be a percentage of your maximum health.

That is pretty much what you must know and all other question become irrelevant. Get their magicka percentage and the rest is simple math. Then see if the resulting value is not more than 60 or 50% of your health and you will know what value you get. There is not really anything else to consider, because it is straightforward.

Shields scale so poorly now after numerous nerfs however, that you can be certain to never hit the health cap in pvp unless you build silly.

FrancisCrawford · June 2020

Dracane wrote: »

For no CP, Hardened Ward is 21% of your maximum magicka. For CP, it is the same, yet you have to add the % from Bastion on top of that 21%. For PvE, it is 42% of your magicka.

All other magicka shields also scale of a set % of your maximum magicka unless they state to be a percentage of your maximum health.

That is pretty much what you must know and all other question become irrelevant. Get their magicka percentage and the rest is simple math. Then see if the resulting value is not more than 60 or 50% of your health and you will know what value you get. There is not really anything else to consider, because it is straightforward.

Shields scale so poorly now after numerous nerfs however, that you can be certain to never hit the health cap in pvp unless you build silly.

So you're saying that they took spell damage out of the calculation for Steadfast Ward/Healing Ward/Ward Ally? When did that happen?

Dracane · June 2020

FrancisCrawford wrote: »

Dracane wrote: »

For no CP, Hardened Ward is 21% of your maximum magicka. For CP, it is the same, yet you have to add the % from Bastion on top of that 21%. For PvE, it is 42% of your magicka.

All other magicka shields also scale of a set % of your maximum magicka unless they state to be a percentage of your maximum health.

That is pretty much what you must know and all other question become irrelevant. Get their magicka percentage and the rest is simple math. Then see if the resulting value is not more than 60 or 50% of your health and you will know what value you get. There is not really anything else to consider, because it is straightforward.

Shields scale so poorly now after numerous nerfs however, that you can be certain to never hit the health cap in pvp unless you build silly.

So you're saying that they took spell damage out of the calculation for Steadfast Ward/Healing Ward/Ward Ally? When did that happen?

No, I think they did not. Never used that ability myself. I mainly spoke about conjured ward and annulment.

Sorry.

Berenhir · June 2020

You are looking for these values:
https://esoitem.uesp.net/viewSkillCoef.php