Champion idea

I had an amazing idea for a champion last night. A hippopotamus warrior! for his passive he would do bonus-damage based on his health and speed. another passive that he might have is he gains bonus armor based on his health max. (like jinx he might have a lot of passive abilities) A third passive would give him bonuses to everything when he has no allies nearby. His first ability would be called something like "reckless charge." it would have the champion to dash forward and deal a TON of physical damage! Also for a few seconds after using the ability he would have a shield which would absorb damage based on his health total. his W ability he would smash down and send water out in a circle around him. This would do magic damage to all units hit and push them back a distance. the Hippo champion's E would give him a massive healing burst.