What this basicly does is,
Bad things:
Makes all spells 20% less usable, because they are up 20% less, BUT makes you cast a little faster.
Makes Wards/heals less effective.
You lose your Dog Dog.
Good things:
You get to use all your Dog Dog's buffs!
Increases your Defenses.
Increases your damage.
The Point:
This Stance would be good for soloing, and running people through zones at lower level, the long cast time pretty much makes it impossible to use during a fight, so you can't just switch stances to exploit the extra stuff it gives.