Toad

"I go to the gym seven times a week!" -Toad, Mario and Luigi: Paradise Panic Episode 3

Toad (often called Yoshi) is a mushroom headed moron, as he usually is. Toad was used as one of Mario's weapons in the episode Shadow Showdown! The attack was called "Seven Times a Week".

Trivia
Toad thinks he is a Yoshi.