works as should
http://boards.lineage2.com/showthread.php?t=242782
t's like a regular enchant scroll, but it can randomly give you an enchant value between +1 to +3. If you want to safely enchant your weapon with these, you can enchant to +2 with regular and then use a Giant's Scroll to get either +3, +4, or +5. That way there is no chance for you to get crystals. Same goes with enchanting armor, but if you feel it's worth the risk to get to +6 then use the Giant's Scroll at +3 (you will get crystals if you fail).