Shaman: Chain Heal's effectiveness will no longer decrease with each jump, and there's a new talent.
Also healing tide is now baseline.

So basically ... if you play 4x ele or enhancement:
4x healing tide
4x Ancestral Guidance or you take the new talent that buffs healing stream totem by 100% and heals 2 extra people.
4x chain heal spam ... (instant in some cases)
4x healing rain (less practical in pvp ofc)

Boy oh boy .,..