You can switch out blessed signet for shielding hands if you cannot stay alive.
You will need to have a -20 offhand so you can die to get 13 health.
To get to Dreadnoughts, zone out into snake dance from Camp Rankor, if there is a heretic rezone until there are only griffons. You will need to die to get 13 health, then make sure to keep your enchants on you at all times and just run (walk) to Dreadnoughts.
There are 2 groups of Tundra Giants you want to kill in Dreadnoughts Drift.
First group:
After you kill the first group, you will need to die to get down to 13 health again, then proceed to the next group. (Really 3 groups, but turns into one when you hit a certain spot)
Stand here to get all of the tundra giants to come to you:
I do not have any screens of the drops because I got D/Ced right after the first run.