Strategy to defeat the overpowered multi-hued dragons from the Vor armory vault?

[Seneca]

Before picking up the plot-related items for the quest There and Back Again to bring me back from the Far East, me, a lowly Lvl 38 Shaloren Temporal Warden, just having defeated one Orc pride, got used to somehow handling vaults and made the mistake of open the vault in the Vor armory. In the vault, there are several overpowerd multi-hued dragons of level 85+ (at least 3) of which I managed to defeat one using bow techniques, but now the remaining two have corned the entrance stairs and hit 900+ shields and 450+ life away just when I enter. I thought of using a powerful teleporting rune in conjunction with See the threads in order to get in a position to wear down the the wyrms from afar again, but the toll is high as See the threads can only be used once per zone. Any other experiences or suggestions to deal with those dragons before I resort to See the threads+Teleport?

[IdealPoint]

Time stop plus movement infusion would get you away if you want more predictability than random teleport.

[Velorien]

Do you have temporal hounds? They can serve as alternative targets for the wyrms (just make sure you're not in the line of fire for breath cones), and one of the talents lets them temporarily survive lethal damage.

Really, though, it might be better to grab the quest item and come back later, when you have more levels and better gear. Those wyrms aren't going anywhere.

[Seneca]

Solved this with a controlled teleportation rune and picked them off one by one. Problem solved! At level 48, this temporal warden could take down a lot of them now without breaking a sweat.

[Bozobub]

Controlled Tele is exactly how I did it, myself, on my 1st win, a Dwarven Alch IIRC.