Alchemy!

[Urthdigger]

I would think it would make Regen and Diurnal Sect somewhat obsolete, giving SCH and Nocturnal Sect a bit of an edge that players would ultimately abuse, i like the idea too but it's as if the potions are nerfed heavily for this reason to begin with.

Two things: First, regens from different players/sources STACK. Second, I believe I mentioned "not strong enough to keep a tank up through boss fights." It would of course be far less potent than the regen WHM can put out, which is actually capable of carrying tanks through expert roulette dungeons on its own.