From the moment I saw this card I fell in love with it. I can think of a hundred different situations in which it would be useful.
 Another card to untap a character. (See also, And Forth He Hastened, Hundreds of Butterflies)
 Untapping with this item does not require a wizard, like AFHH, and does not require the untapping take place during the movement/hazard phase like HoB.
 It's a permanent card, as opposed to AFHH, or HoB, which are discarded when used.
 You don't make a corruption check when you use it.
 It isn't unique! (and, it's common!)
 It's an item, and a hoard one at that. It gives 1 CP, and you can't start with it. (Ohhh I wish!!)
 You have to roll greater than 6, which in and of itself isn't THAT bad, but there are no modifications of any sort.
 Cannot be duplicated on a given character. (Ohhh I wish!!)
 Cannot untap wounded characters.
 You have to tap it. (one use per turn )
This is a gem of a jewel (pardon the pun), and lends itself beautifully to many, many situations in which you end up tapped. I can think a few off hand: Assassin, large fat dragon attacks, river, auto-attacks, etc etc, ad infinitum.
Ok, allow me to set up the scenario. You and your cronies are heading to some site (pick one, I don't care), you wind up tapped at some point or another, and here comes a big creature. Wouldn't it be nice to be able to untap and let your big guy take that nasty critter?
Or let's say, you're at a site, trying to influence a faction, you tap the character, the dice crap out, and the faction basically gives you the finger. Wouldn't it be nice to untap and try to garner an item for your troubles? "Give ME the finger, will ya? Well, I'll just take this palantir, thank you very much!"
Now, because it cannot be duplicated on a given character and you have to tap the Jewel itself, you have to be careful when you use it. But it sure would be nice to have the option to untap in the first place! And especially when those other cards just aren't coming up. If you're playing hero, I highly recommend this card be included in your deck.
Original card review taken from : http://fan.theonering.net/morgulrats/
With the authorization of the webmaster.
The reviewing team consisted of Gwaihir (Chris Farrell), Gimli (Nathan Bruinooge), Ohtar (Charles E. Bouldin, Esq.), Radagast (James Kight), Joshua B. Grace (Beorn), Martijn Steultjens (Fram Frumgarson), Jason Klank (Saruman) and Jeffery Dobberpuhl (Wormtongue)