Champion concept:reaper

I have got an idea of a champion Passive-after killing enemy champion he will have 0.5second invincible time Q-180degree of hecarim and push the enemy from right to left W-flash a direction like ezreal e but have a longer distance E- target an enemy and absorb his hp/pd/md for 2/3/4/5/6secs R-Dash 1 direction,create a black fog on the road for 4 sec,enemy will not see the opposite team champion except they are in the black fog The style of the champion should be like reaper.