Dark Harvest in ARAM nerf ideas

Dark Harvest is obviously too strong compared to other keystones in ARAM, so there are some suggestions for balance it.

1. Champions grant 4 or 3 Soul Essence, large minions — 2 Soul Essence.
2. Reducing base damage.
3. Amount of Soul Essence to become Soul Charged — 200 or more.
4. Time to trigger the empowered attack when Soul Charged — between 60 and 120 seconds.
5. Removing the "if you kill the target yourself, the Soul Essence will be automatically picked up" part, so ranged champions won't have advantage over melee champions.