Originally Posted by
Lunaeria
1. Lifebloom uptime needs improvement. Aim for 100% where possible. Not only is it a strong single-target/tank heal (with 4-set, it should actually be your top heal) but ticks also proc Clearcasting which allow you to cast one RG for free. Very useful for mana conservation. 2-set LB is also a far stronger, cheaper version of Rejuvenation - with 4-set you can swap LB around the group regularly. Use it for raid healing as well as tank healing.
2. Harmony uptime is low. Again, aim for 100%. This is your Mastery buff - you activate it with a direct heal and it boosts your periodic healing for its duration. Might help with mana - if you're healing for more, you theoretically can cast less and conserve more. (If not true in practice, you'll at least do better healing.)
3. Some casts of Regrowth outside of MoC - this isn't actually a problem, per se, but on some fights there's a lot of overheal going on. If you feel that RG would be useful outside of Clearcasting, ensure that it's actually needed - if it's going mostly into overheal, you might as well just use Rejuvenation instead.
4. Missing Glyph of Wild Growth from major glyphs. Drop Glyph of Dash for it. Also, I recommend Glyph of Regrowth - drop either the Rebirth or Stampeding Roar glyph for that, depending on whether or not your Roar is needed for raid utility (it usually is.)
5. If you're going to use Dream of Cenarius, just ensure you weave it amongst your other healing properly - don't let Harmony/Lifebloom uptimes slip because you're focusing on spamming Wrath. It's not such a good talent once you gain more regen, but perhaps at your spirit level, it's a fairly good idea to use it at the moment. You're going to want to swap to NV or HOTW when your healing gear improves, though.
6. You could be using Swiftmend more. I personally use it on CD, but you can hold off on doing that if you have mana issues, as it can be somewhat draining. It's a very strong spell, though. Fairly cheap, instant-cast, and - for me - heals for 102k+ when it crits.
7. Gem/enchant for Haste, not Mastery. You're definitely lacking in the Haste department.
8. Enchant your weapon with Mark of Shadowmoon!!! Easy +500 spirit proc, right there. It'll help out a fair bit. You're going to lack for regen in general, though, because of your low spirit and lack of healing trinkets - once you get the Demonic Phylactery from Socrethar, you'll see a reduction in mana problems quite quickly. Do your best to get more spirit where possible, though.
That's all I can point out for now, really. I'm a bit tired so please excuse any potential spelling errors.