Celtic Heroes

Well, this is kind of a tough question. I suppose it really depends on the boss/mobs that you are fighting, as well as the class/stats of the character that you'll be primarily focused on. For example: If you are buffing/healing a Rogue, and he's tanking a boss or soloing /duoing with you in group, abund is probably a good idea. This goes for quite a few other classes, including druid and mage. HOWEVER, I find that I rather prefer Bark as an all-around skill, for elixers as well as bosses. Bark, at about lv 49, gives roughly 700 armour. Thats a TON. Just the severe decrease to physical damage recieved (I've seen it go from mobs hitting 600's on me, to 200's-300's) is absolutely worth the skill points.

Another thing to consider is that Bark gets a nice boost from DL, One certain piece gives you +5 to it, whereas Abundance has no boost whatsoever from DL pieces.

To sum it up, Abundance can be useful in some situations, but I prefer Bark over it most of the time.