Stats
First off, the game's ingame info is kinda weird. Wisdom and Essence the most important stats for a healer? Uh.....if you build your healer like that, all he'll be able to do is run around buffing and healing, with absolutely zero combat ability getting one-shotted by mobs. If that's what you want, to be totally under the protection of other players, okay you're kind of weird....or you have EXTREMELY good leveling friends....

I reccomend building your healer with Strength and Dex mostly. Wisdom I don't like to do much with at all. Constitution and Essence, and thus HP and VE are what I like to call conveniences only.

Strength - This should be your highest stat by far. You want to boost this one up. It lets you hit your enemies hard, and raises your defence as well. By building strength you let yourself grind mobs efficently and effectively. Based on the fact that Constitution is your penalty stay (2 points to raise by 1), you want the high defence so your HP doesn't drop like your love life does each day(just kidding!!). You'll hear other players saying you want to max this at 250 base by the time you hit mid or late SM levels.

Dexterity - Second most important stat for me. Here's where I'll go into a little PvP. To be effective at Melee PvP, you need plenty of Dex. You can add as many points as you want into dex, but in the end, we're still a bit short of the tools other classes get. So, you might as well focus on adding strength so that you can at least grind quickly Basic point, I would not try to boost PvP capability on a healer until at least Strength is maxed out. If you're going to follow my example, what you want to do is pretty much leave Dex at the weapon minimum requirement.

Use the info to stay on top of your Dex requirements. Know what the coming levels of weaponry will require, and be sure you're prepared. Please note the slight jump going from FD to SM. They aren't too accurate at the higher levels of weaponry, but for new healers, its reliable. By RL or FD, you shouldn't even be coming back here for advice on how to play healer. You can go to Hefei or ask Band Members for weapon requirement info. For BoT Axe users, your lower weapon balance will give you more external wounds than say a glove user. Some add about 10-15 dex above the weapon req to make this more manageable, but hey, you've got an External Wounds Heal. Your call.