Why does corrupting potion exist?
What even is the point of this item? It's meant to be a replacement for flask but it fails in every single possible way.
Firstly it costs 500g. That's ALL of the starting gold spent right there. Can't also start with wards, or potions. Nothing. And it doesn't upgrade into anything.
Starting with corrupting potion means you get +450 hp, +150 mana and a tiny bit of extra damage when trading. If you start with this item because you need more health regen, then it only becomes efficient after >10 charges. That's a long time. Thus, the only reason to buy it is if the champion is very mana hungry early. Even then, you're paying a big price for just 150 mana. Spam a bit less and you save 500g.
Why would anyone start with corrupting pot when the following starts are just better?
AP:
AD:
Tank:

Refillable potion
also sucks for laning.
)