Sumo Bro

Sumo Bros. are a sub-species of Hammer Bros. in Super Mario World. They stand on blocks and make fire appear below them to attack Mario.

It's not exactly known how they perform the trick put when they pound their feet a lighting bolt falls down and creates a huge wall of fire.

They also appear in New Super Mario Bros., where they fling hammers, and also have a move where they pound the ground, destroying weak blocks and stunning Mario if he is on the ground.