Hoping some people in these forums got some answers for me here, that has tested this out on the PTR.
# Glyph of Totem of Wrath: When you cast Totem of Wrath, you gain 30% of the totem's bonus spell power for 5 min
So, here is the deal.
You cast the totem and you get 84 spell power. However, it stands that you only need to cast the totem, not have it out.
My guild is currently raiding with 2 elemental shamans, where i am the one who is lucky enough to use searing totem on those fights where it is not needed to "spread" out.
Have anyone tested this out? that is is a 5min buff with the simple press of one button. and does not disappear when you cast another fire totem?