You can do that already, albiet temporarly. Spacial Paradox allows both you and a nearby (or targetted) healer to double your casting range for anything that doesn’t have a targetting reticule.
Devastation is actually very sturdy for a dps. Obsidian scales and renewing blaze are your friends. The only time I really die with devastation is if I make a horrible error and get hit by a one shot mechanic or just do a mechanic wrong in general. The only other times is if I rip threat and get melee’d six times in the face.
you have unlimited hover and shroud LOL youre fine
My advice is to set up different talent trees for different situations. There are some talents that are better against melee than casters and vice versa, like the firewall PvP talent for Deep Breath to buy you some time against casters, or the stronger Avalanche talent for persistent melee, or the talent that causes Wing Buffet to daze. Of course, pre planning isn’t always an option, such as in WPvP and BGs, but in that case you have more tools at your disposal such as the items you can buy to displace enemies, or buff your defense, or give you a super heal, etc…
This cant be real lol, this spec destorys melee.