Minion Dematerializer should be a new shop item.
The item from the Inspiration tree should be replaced with something else but I feel like those items still have a use,mainly when dealing with superminions during late game so you can instantly kill them. If they were limited to only being able to purchased 6 times in a match then I think that would be pretty good to have. With the direction that the game is currently going this seems like a no-brainer to me.