Can you get banned for using Championify?

Honestly yes, because it fucks with game files

they may choose to ignore it like they do discord but still

what bans are you referring to?

I'm not really familiar with Championify, but as long as it doesn't give you an unfair advantage, they aren't targeting you directly.

Their stance is that any 3rd party tools that interferes with gameplay (but doesn't give you an unfair advantage) is use at own risk,. They can't guarantee you won't be banned, but they aren't directing the system at you.

whats championify

what does that mean?

No, riot lets you make custom item sets and championify is a tool that imports them into the same folder where they store item sets.