How do you feel about an item like Viktor's hexcore vs other mage items

Hexcore isn’t an item. It’s a champion element that consumes an item slot. I say this because it gets to break nearly every rule that items must generally consider. Really awesome for Viktor, and does some things that I’d love to try more of (balance of unique elements to stats, augmenting rather than addition of qualities), but it’s fairly inaccurate to consider it an item in most ways.