I think there is still too much damage in the game
A few patches ago riot tried to tune down the damage in the game removing half damage from the electrocute but making it the double more spamm-able, and damage from other runes, I think that's not really the problem of the game.
Because thinking about it, all the champions that are the moment are good and in META are the ones that can kill you with a spell rotation, or the ADC that put such a ridiculous amount of DPS to become burst damage (mostly because of
)
TBH to remove that damage that is toxic for the game I would remove the lethality stat from the game,
,
(or reverting his passive to the old mini AoE damage) and rebalance the game around it
DH(Dark Harvest) is a rune that in the jungle rewards you for doing nothing at all, it just gives you damage for killing monsters and occasionally gank a lane, you don't even need to take an assist with it to have the soul dropped, at 150+ stacks it already starts to do an unnatural quantity of damage making easy to one shot squishies( on AD champions because of the combination with
| on AP champions because of the combination of
+
on some champions).