This is what happens when you end up with all of the first 4 buffs. Double smite OP. Only silly comp we tried last night that actually worked (all bruiser all top and all adc all mid went terribly).
When the ad carry on your team is good enough to operate without a support this is actually an excellent pubstomping team comp. The enemy jungler won't know what to do haha, and you can just control the entire map like it's nobody's business and you have an insane advantage.
15% max to current health just means instead of using it as an execute (what people were doing before), you now use it as an initiator (what the original design intent was).
If you use it as an initiate, it literally does the exact same damage it ever did.
I've had to do some bizarre stuff before, like support Poppy.
Surprisingly not the worst thing I've ever tried. If I could land just one slam into a wall on the enemy adc it would basically be a kill for mine.