Crescent Moon is a unique amulet and presents as a useful amulet to any melee character due to having both Life and Mana Leech on it.
Level Requirement: 50
10% Damage Taken Goes to Mana
+45 to Mana
3-6% Life Stolen per Hit (varies)
11-15% Mana Stolen per Hit (varies)
Magic Damage Reduced by 10
-2 to Light Radius
10% Damage Taken Goes to Mana
Good for melee characters who rely on Mana-draining Skills as their primary attack Skill, as they tend to receive more hits than casters. So each time they get hit, they can gain small amounts of Mana, and be able to use their Primary attack Skills more frequently. Sorceresses who make use of Energy Shield will also find this mod useful, as the more Mana they have, the better able they will be to use Mana for their spells and also use it a shield buffer for Energy Shield.
+45 to Mana
A great boost to Mana and good for casters, or anyone who relies on the Mana-draining Skills as their primary attack Skill. Casters benefit from Mana more, but it is still a nice bonus to have for melee characters.
3-6% Life Stolen per Hit (varies)
11-15% Mana Stolen per Hit (varies)
Since Life and Mana Leech work only when you physically hit monsters, it is of much greater importance to melee characters compared to casters (since casters seldom hit anything with a weapon).
Life and Mana Leech are great mods to have on any item, despite Hell Difficulty having reduced returns on both Leeching abilities.
Magic Damage Reduced by 10
Magic Damage Reduction by a numerical amount is usually useless due to the fact that at higher levels, attacks from monsters can dish out several hundred points worth of damage.
-2 to Light Radius
This won’t be a problem for almost everyone, except for perhaps Amazons who depend on long-range weapons to dish out the damage to their foes.
Summary:
While Crescent Moon might not appeal to casters due to its lack of caster-friendly mods, it will definitely appeal to melee characters, with the main attraction to them being the Life and Mana Leech.