So i mainly need help when im in a raid on the debuffing/backup healing side...I Did a BFE and Flight and they went well but i was pretty much mindlessly spamming all the skills lol.

Any advice on how to trait and what kind of legacies i need on Lis (by the looks of it i can just keep my DPS staff considerring only good trait for staves was give power magnitude which was kinda lame-ish)
Also which armour set would be the best to get?