Save the rift herald
My personal idea on how to save the rift herald from being exploited. Yes it does take near 40s for soraka to solo it, but I don't believe any champ should ever be able to solo the rift herald. My current idea is as follows.
Increase rift heralds current damage by 10% and it won't open it's eye (weak spot) unless there's two champs. (the two champs don't have to be on the same team.) While the eye is open it should also have it's damage increased by 15% until it's eye is hit and closes.
The reason I suggest these buffs to the heralds is to make any champ soloing rift herald virtually impossible and to increase the trading off of agro since the bonus damage from the eye being opened will hurt whoever it's on and possibly kill one champion if they never trade agro.
Open to thoughts and opinions on the matter.