Really rough champ concept

So we know void creatures are ravenous, whether its flesh or knowledge. What about a canabalistic void creature, he or she primarily prays on other void creatures. This creature could be seen as being ancient and through human meddling was intentionally brought to runeterra as a "solution" for the void. Only problem with this solution is that once all the void creatures are gone, how do you put the lid back on a box like this?

This is just a quick second concept, as always feel free to add to it and give feedback, thanks!

Edit: Maybe a scavenger would be interesting too, vulture like behavior. Feasts off the dead or something.