công thức như sau (mình dịch ra tiếng Việt, hi vọng chính xác ^^ )
1.weapon + regular crystal (viên trắng) + [gem] + [scroll] -> weapon add bonus + require 5 more level
-no gem
no scroll : +10% def (đối với unique/set), +15% def (normal/magic/rare)
-Amethyst:
no scroll: +10% to atk rating (unique/set), +15% atk rating (normal/magic/rare)
town portal scroll (tp scroll): slow target by 3% (unique/set), slow target by 5% (normal/magic/rare)
identify scroll (id scroll): 1% mana stolen per hit (unique/set), 2% mana stolen per hit (normal/magic/rare)
-Diamond:
no scroll: 15% damage to Undead (unique/set), 25% dmg to Undead (normal/magic/rare)
tp scroll: 3% chance to Uninterruptable Atk (unique/set), 5% chance to Uninterruptable Atk (normal/magic/rare) cái này là tấn công không gián đoạn
id scroll: 15% dmg to Demon (unique/set), 25% dmg to Demon (normal/magic/rare)
-Emerald:
no scroll: +2% to poison spell dmg (unique/set), +3% to poison spell dmg (normal/magic/rare)
tp scroll: poison length reduced by 3% (unique/set), 5% (normal/magic/rare)
id scroll: 3% deadly strike (unique/set), 5% (normal/magic/rare)
-Ruby:
no scroll: +2% to fire spell dmg (unique/set), 3% (normal/magic/rare)
tp scroll: 7% chance of Open Wound (unique/set), 10% (normal/magic/rare)
id scroll: 1% life stolen per hit (unique/set), 2% (normal/magic/rare)
-Sapphire:
no scroll: 2% to cold spell dmg (unique/set), 3% (normal/magic/rare)
tp scroll: 2% bonus to cold skill duration (unique/set), 3% (normal/magic/rare)
id scroll: +10 to maximum dmg (unique/set), 15% (normal/magic/rare)
-Topaz:
no scroll: 2% to lightning spell dmg (unique/set), 3% (normal/magic/rare)
tp scroll: 1% curse length reduce (unique/set), 2% (normal/magic/rare)
id scroll: 3% better to get magic items (unique/set), 5% (normal/magic/rare)
-Skull:
no scroll: 1% crushing blow (unique/set), 2% (normal/magic/rare)
tp scroll: stun atk 0.16 giây (unique/set), 0.20 giây (normal/magic/rare)
id scroll: 2% bonus to summon minion dmg, tăng dmg của mấy con mình summon (unique/set), 3% (normal/magic/rare)
-Rainbow stone:
no scroll: target take dmg of 8 (unique/set), 10 (normal/magic/rare)
tp scroll: 2% stamina stolen per hit (unique/set), 3% (normal/magic/rare)
id scroll: 8% to summon minion atk rating (unique/set), 10% (normal/magic/rare)