Liar Tree Sap 100%

The sap is like a chaos scroll. That means, an item without any LUK can't gain any LUK. An item with DEX can gain or lose DEX (As long dex < 255)

I remember some CMS h4x0rz created a lvl 1 weapon that had 480 wdef and mdef or something like that. Who knows if you can go above 255 though =/