Add Shell, and don't make it stackable with protect.

[Aldora]

Protect in XIV - Increases the physical and magic defense of target and all party members nearby target.

They basically merged Shell into Protect.
Actually they made Protect, Proshell.

The funny thing is that in 1.0, Protect and Shell were 2 separate single target spells. After clicking the "Area of effect"-button those the single target spells would turn into AoE spells.

FFXIV 1.0 Protect:


FFXIV 1.0 Shell:



With A Realm Reborn, they merged those those 2 spells to make the "Protect"-spell which increases both physical and magic defense (after getting the "Proshell" trait at level 16). I'm actually happy they they merged those spells into 1 single spell, because if you look at the every day Duties, half of the groups you meet didn't even want to wait till both Protect and (Swiftcast) Stoneskin II were cast before taking off.

Image how things would be if we had Protect, Stoneskin and Shell in our toolkit.

Edit: And then i found out that Lemuria beat me to it. (^_^; )

How soon we all forget. At the launch of XIV, there were two separate spells. Protect and Shell. It was only when it was remade into A Realm Reborn that we lost Shell and it became a trait added onto Protect. What's more, Protect and Shell had a far more dramatic increase in defense in their original forms, reducing damage by a very noticeable margin.

Mind you, these were also the days where Conjurer also had all of the elemental spells too. Banish was in the game too, but as a Thaumaturge spell.