There is some things like that
[You must be logged in to view images. Log in or Register.] sorta. Not the grp heal part tho.
Would be neat if a necro could like take a paladins life and give it to others and paladin just keeps being replenished. Could do that on pvp. Would be a fun meta to build a game around. As like one if a few different competitive end game grp/raid builds.