Harlequin Crest is a unique Shako.
Besides its bonuses to skills, life, mana and damage reduction, Harlequin Crest (often referred to by the community as simply "Shako") also bestows a very high boost to magic find, which can be boosted by socketing the helmet with an Ist Rune or Perfect Topaz.
Harlequin Crest is also fairly cheap to acquire via trade because none of the modifiers (besides base defense) are randomized. It is a good all-around helmet for nearly any class.
Stats[]
Harlequin Crest
Shako
Defense: 98-141
Required Level: 62
Required Strength: 50
Durability: 12
+2 To All Skills
+1-148 To Life (+1.5 Per Character Level)
+1-148 To Mana (+1.5 Per Character Level)
Physical Damage Received Reduced By 10%
50% Better Chance of Getting Magic Items
+2 To All Attributes
Normal Helms — Biggin's Bonnet (Cap) • Tarnhelm (Skull Cap) • Coif of Glory (Helm) • Duskdeep (Full Helm) • Howltusk (Great Helm) • The Face of Horror (Mask) • Undead Crown (Crown) • Wormskull (Bone Helm)
Exceptional Helms — Peasant Crown (War Hat) • Rockstopper (Sallet) • Stealskull (Casque) • Darksight Helm (Basinet) • Valkyrie Wing (Winged Helm) • Blackhorn's Face (Death Mask) • Crown of Thieves (Grand Crown) • Vampire Gaze (Grim Helm)
Elite Helms — Harlequin Crest (Shako) • Steel Shade (Armet) • Veil of Steel (Spired Helm) • Nightwing's Veil (Spired Helm) • Andariel's Visage (Demonhead) • Crown of Ages (Corona) • Giant Skull (Bone Visage)