Get a high ES helmet with subterfuge mask, ES or hybrid chest (pref i think) and scale % ES with ghost shroud and wind dancer.
Yea I figured out, that es is the only way. It feels kinda dumb that you can't scale life at all and if you get like 3k max from the gear, it's still way too low, especially when there are limited ways to mitigate damage, like there is no supress, block sucks, etc. And es scaling is so easy. Now the league is dead already anyway, the lesson learnt, hope for better changes in 3 months or so...