When you have two shaman, atleast one restoration, you can stack shields. this is helpful with the glyph of lightning shield and a resto shaman to cast earth shield on you after you have initially casted lighting shield. What I am more focused on is having two resto shaman and being able to swap shields while using the glyph of lightning shield. both shaman get 10% increased damage reduction and a stacking earth shield. This has been working for a few patches now, it has just now become more useful with the glyph. It really is nothing special but i use frequently and would like this moved to elite. ejoy while its here
1.target casts lightning shield
2.healer cast earth shield on target
3. Feel special with your 10% damage reduction, healing, damage dealing natureshield.
DOES NOT WORK WITH WATER SHIELD