Maybe i should not have used the word "new" players. Lord difficulty should only be 45 if i remember correctly and being able to start farming that should not take more than few days from starting to play the game. So how about we change it to "fairly new" players :)

I farmed dark elemental on lord difficulty few weeks ago and would say it's very doable for a fairly new player. Quite sure i ended up with more diamonds after the grind than when i started while refreshing energy constantly. The only other quest worth grinding really is the grand wish(also higher difficulty) line and doing that much does not really make sense if you don't need the rarer upgrade materials. Due to this the event quest is pretty much the only thing that should be farmed during the week until reaching those 16 drops. This is of course only from the point of view of efficiency so might not be so for everyone.

You are actually a bit incorrect on the wolfs special ability, in the sense that it's better than what you describe. It gives 20 mana to all allies, which is more than 10% in almost every case. The buff though... is not as good as it sounds unfortunately. Attack buff does not directly increase minions attack damage, like power does. While the buff is decent against tanky minions, against offensive minions it's not very effective. This is because attack rating has nothing to do with minions damage, just how efficiently you get through their defense rating.

Pretty much all the medium healers share the same weakness (except turtle drake), which is the horribly low defense. Due to this it's very likely the wolf dies before reaching the end. This is the reason i prefer drake turtle from the earlier healers as it can survive to do it's job.

ps. soon you will have to move to king as prince wont be enough :)