How is 'Healing Done' calculated?
As per title. It seems pretty hit and miss sometimes in regards to life steal, natural life steal, item lifesteal, etc...
for example, take this recent match of mine: http://matchhistory.na.leagueoflegends.com/en/#match-details/NA1/1593897336/48814756
Fizz has done 1.1k healing, with no life steal items at all. And Nasus, with his passive AND zekes, has 0.0k healing done? Lee sin, with ability life steal, had 11k.
A google search turns up mostly threads from 2013 that have no real conclusion or explanation, has anyone else figured this out yet?