New Sion passive

As I giant undead berserker I think the concept of him having a death passive is a given. However, Sion's passive in its current state is completely useless. He is kited to heck and does no damage, but it does have its funny xPeke moments. I think it would be more fitting if as he died his soul furnace would overheat, causing him to explode into 100 chunks which would deal %max health true damage in a medium sized radius. This would be a lot easier to balance and would be friggen awesome to ult into a team, get killed and take off a quarter or so of everyones health so you team could come in and clean up. Plus the soul furnace explanation makes sense thematically. Hire me pl0x.