About ascended armor...
No. All you can do is change the stats by using the mystic toilet (iirc 1 Anthem of Heroes, 5 Ectos, 1 exotic insignia of the desired stats and the item itself), but the armor class will remain the same.
Leader of “Servants of Balance” [SoB], a small guild endemic to the FSP.
No. All you can do is change the stats by using the mystic toilet (iirc 1 Anthem of Heroes, 5 Ectos, 1 exotic insignia of the desired stats and the item itself), but the armor class will remain the same.
https://wiki.guildwars2.com/wiki/Ascended_equipment#Changing_attribute_prefix < for details on how to change the prefix
And no, you cannot change the quality of the armor. Heavy will always be heavy. you CAN however use an ascended salvage kit for a guaranteed preservation of the rune/sigil used in crafting, and then use that to change the stat of a light piece to your desired prefix. But then you would still need an ascended light piece.