So SL will bring back some abilities to make classes "great again".
There was this one minor ability that Fury warriors had in Legion.
When you recieved a killing blow, every so often a Valkyr would keep you at 1 Health and you had to deal a killing blow to the enemy that almost killed you to get back to 10% health.
I know they won't bring that back, but it was awesome.
What removed ability is your favorite?