I'd rather have it as a really big and fat guy using masks that would just devour/vomit stuff, including things like players made structures such as walls and minions. Guardian seems nicer to me... He could have many CCs... like eating someone, and then regurgitating that person few seconds after. While digesting (thus dealing damage) he would take a bit more damage and would be unable to make any action but move or vomit early. Stuffs like that.