HELLO @Cliches !
In my opinion it is better to opt for a better armor than a better ring.
You have an expo.
Note that expos are literally 1 downgrade from pyras.
Expos literally just go for more defense than pyras do and thats it.
WIZARDS NEED DEFENSE more than anything else since their dps is already insane.
Yes, exalted health gives an enormous hp boost, but consider the following:
An expo is already a really good ring and I’d perfer having it.
If you want even more safety, opt for the exa hp, but note that you lose def from the expo.
Also Note that an expo gives +8 stat increases as well as +120 mana/hp increase, and the exa hp just gives +140 hp. It depends wether you opt for a more focused ring or a good, and average ring.