Hammer Mario

Hammer Mario is a form of Mario/Luigi in Super Mario Bros. 3 when he obtains a Hammer Suit. In this form, he looks like a Hammer Bro and is able to throw hammers. he also can resist fire attacks when ducking and can defeat most enemies, even Bowser. Hammer Mario/Luigi has an infinite supply of hammers, just like the Hammer Bros. While the suit appears to thoroughly protect Mario/Luigi, it does not defend against the simplest of attacks and will be lost in one hit.

This form should not be confused with hammer-wielding Mario/Luigi; Hammer Mario/Luigi has an infinite supply of hammers and black shell armor

Trivia
If Mario beats a Koopaling while in this state, the king of the world will say:

"Hey, you! How about lending me your clothes? No dice?! What a drag."