Suggested by Sonic A Gloomba is a pretty deadly foe because they can poison you with ease. You can’t allow yourself to make contact with them. Piranha Plant also has the ability to poison its foes so would it be immune? It’s hard to say but at least it would have some resistance. Either way it’s an easy win since the Plant can spit out fire and even throw out spike balls. Gloomba will be running for his life during the whole fight and will never know a moment’s peace. Piranha Plant wins.