This incredible healing mace is actually changing looks in patch 2.2-- thanks to our friend MMO Champion for the comparison pic above.

Name: Crystal Spire of Karabor
Type: Epic Main-Hand Mace
Damage/Speed: 16-132 / 1.80 (41 DPS)
Abilities:

• +22 Stamina, +15 Intellect
• Increases healing done by spells and effects by 486, which is high enough to make grown men cry
• Restores 6 mana per 5 seconds, which makes grown Shaman everywhere weep with happiness
• And if your target is below 50% health, direct heals will grant an additional 180 to 220 health to your target, which makes healers' mouths everywhere drop open. Which means if you're direct healing someone below 50% health, you get at least +660 healing just from this item. Of course, not all +healing translates directly into heals (and definitely not on the lower ranks anymore). But still, that's a lot of +healing.
• Trivia: The Black Temple was previously known (long ago) as the Temple of Karabor, the center of Draenei worship everywhere. The Spire of Karabor is likely a piece of the temple itself (or perhaps the Altar within), fueled by years of Draenei faith and prayer. Pretty cool.

How to Get It: It drops from someone named Van Cleef in the Deadmines!

No, only kidding. Loot like this doesn't come easy-- you've got to be prepared for this one. Illidan himself drops this baby, when you kill him in the Black Temple. We haven't seen all that many kills yet, so a percentage isn't certain yet, but odds are it's less than 20% or so, and possibly a lot less than that. And considering this is a great mace for every healer in the raid, you're going to have to be pretty good and really lucky to call it your own.

Getting Rid of It: Sells for 14g 32s 71c, and disenchants into a Void Crystal, but come on now. Don't even think about it.