Ok people told me that Latent effect kicks in when u reach 25% of ur health or when ur in yellow. Now if this is true Its useless to a blm cause we get hit we pretty much die =b. Others said Latent effect works with right Subjob..which dosnt make sense cause it would be for all Classes and would work if u had Blm as Sub soo Im chalking it upto useless.
Latent effects are different depending on the item. Some are yellow HP, some are the right subjob, some are activated after doing a certain number of weaponskills with the weapon, some are activated by having a certain amount of TP, some are activated by low MP (see Uggalepih Necklace on this listing).... there are endless possibilities. Read up on each item about how to activate its latent before you buy it!