Big sulfur cube

As we all know all slime variants come in 3 diferent sizes (small, medium and big) except for the new sulfur cube wich only has 2, so what if we had a third size for it? The big sulfur cube would work in a similar way as the medium one, but instead of consuming blocks it'd consume entities (it'd go to the nearest entity and consume it). When the big sulfur cube consumes you, you'll be able to control it like some kind of hamster ball, you'll still be able to be attacked while being inside a big sulfur cube but you won't be able to recieve any fall damage, you can also use it to deal damage to mobs by running them over or jumping over them with the cube, and as the cube can consume almost any entity hostile mobs can also use it to attack you too. There's gonna have to be a limit of wich mobs are gonna be able to be consumes by the cube tho, as it wouldn't make sense for mobs like the Warden or other sulfur cubes to be able to be consumed.