Just Delete Dark Harvest rune and create something else.

Dark Harvest on release created a huge mess of nasty one shot if well farmed and it was hell to balance , worst on ARAM. The Dark Harvest we have now proc of every damage, does a huge chunk of damage off anything and also reset on takedown and assist making it overbearing and meta warping on every single map of League of Legends and legit a monstruosity on ARAM... Riot admit you messed up big time with Dark Harvest, remove it and replace it with something less troublesome to balance and not meta warping as Dark Harvest we have right now... legit every game I see 3+ Dark Harvest user and in the worst case, the enemy team all use Dark harvest...it really show a lack of balance and should be changed immediatly... Thunderlord decree was meta warping and got nerfed to the point of not being as overbearing than other runes because it was staple number. Dark Harvest scaling infinitly is a huge mistake .