I got a question for the whole community : If u got a BiS ele shaman and a BiS demo lock, which one would u take to raids with u ?
Given the fact that in ur raid u allrdy have an moonkin for the 5 % raidwide spellcrit, the 3 % more crit to a target due to heart of the crusader and that some resto shaman provides wrath of air totem.
I play ele myself, but even i would need to admit i would take the demo lock. Why u ask ? Cause of demonic pact, which scales with spellpower.
My suggestion would be : Totem of wrath : same mana cost, fire totem needed and lasts 5 min. Your spell criticals increases ur party/raids spellpower by 10 % of ur own spellpower. Lasts 12 sec. Also increases critical chanse of all attacks made against all enemies in a 40 y range.
Glyph of totem of wrath changes to : When u cast totem of wrath, ur spellpower increases by 10 % for 5 min. (To keep up with demo locks fel armor and demonic knowledge).