Ball of Dark Energy 100% chance.
Crafted will work. Ascended weapons from the elite spec collections work too.
Depending on your crafting professions, some items end up cheaper than other (e.g anything requiring wood/leather tends to be more expensive). So check a site like gw2efficiency to find the most cost effective.
Yea but its not 100% chance from what I remember
It’s 100% chance from weapons and armor.
It’s 100% chance from weapons and armor.
Vayne is correct. According to the wiki Ascended amulets, accessories and backpieces have a very low chance and Ascended armor and weapons have a 100% chance.