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

[Lemuria]

Don't forget at the launch of XIV only White Mage had Protect with Proshell, any other healer had to make due with only a physical defensive boost instead.

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.