This is a nice build i found on GuildWiki, I am always using this build since i found this and it works great!
1: Ethereal Light (Use this when a ally is at 25%, 50% or 75% health)
2: Dwayna's Kiss (Use this on a ally that has a enchantment or a hex on him/her. You can also use it as a quick heal when Ethereal Light is recharging)
3: Any healing spell that costs 5 energy (Or a healing spell that costs 10 energy if you're good at maintaining energy)
4: Light of Deliverance (This is your Elite. Use it when the party loses health rapidly, or when someone is out of spell range. You can capture this Elite from: Chidehkir, Light of the Blind at Marga Coast or from Kenmak the Tranquil at the Moddok Crevice Mission.)
5: A Condition remover (Dismiss Condition, Mend Condition etc.)
6: A Hex remover (Holy Veil, Smite Hex etc.)
7: Holy Haste (You need this enchantment on everytime, you'll see why)
8: Any ressurrection spell (Ressurrection Chant, Rebirth etc.)
Equipment: Any armor is usable, but on Wiki they say PvE Radiant is the best for this.
A staff with 20/20 +5 energy +30 healing staff is recommended according to Wiki. (I just use my own staff, works just as good)
Attributes:
Healing Prayers: 16 (12 + headgear + superior healing rune)
Divine Favor: 13 (12 + minor divine favor rune)
Protection Prayers: 4 (3 + minor protection rune)
Note: This build is not completely ''borrowed'' from Wiki, Because i like this work better.
Maybe i will put screenshots of the LoD bosses later, because i don't know how to put screenies on a forum.
I hope this build works just fine for you and that you'll have fun with it.
Greetings, Mepp Greyhorn.