Thanks for the info, now that i checked i have %624 lsd with superbeast -%170 elr.
For the town portal tactic i have to ask:
Lets say i have succesfully tped town before he started healing, if i go back from portal when does he starts healing again? I have to ask because he may not have dropped lightning resistance as soon as i come back if i cannot damage at this point do i need to tp all the time until he drops resistance? Because 1 element drop from heroic shield depends on RNG and can take quiet a while.