Elemental Armor
 

Elemental Armor no longer stacks with Minor Potion of Cold http://everquest.allakhazam.com/db/item.html?item=65126 , but it does stack with Minor Potion of Heat http://everquest.allakhazam.com/db/item.html?item=65180 . What up wit dat?

I forgot to mention that both potions still stack with Elemental Shield. Here are links for both spells.

Elemental Armor:
http://everquest.allakhazam.com/db/spell.html?spell=109

Elemental Shield:
http://everquest.allakhazam.com/db/spell.html?spell=108