Ho-oh is a type of Pokemon that comes out of a Poke Ball in Super Smash Bros. Brawl. It is considered to be a "legendary" Pokemon, making it much rarer than some of the other Pokemon in the game. When Ho-oh appears, it begins its attack, which is called "Sacred Fire". In this attack, Ho-oh will fly upwards slowly and then end up in the background of the stage. It then releases a huge pillar of fire. Any character that touches this pillar will be sucked into the center and take a large amount of Damage. Because players can get sucked into the center of Ho-oh's pillar of fire, if Ho-oh happened to be released from the Poke Ball at the very edge of the stage, players who get sucked into its pillar of fire will be sucked down and be meteor smashed (a meteor smash is an airborne attack that sends players downwards). Ho-oh's move also has great Knockback at the very end. Because Ho-oh has a delay before it sends out the pillar of fire, its attack can be easily dodged for those who are paying attention to it. Ho-oh has arguably been buffed from Super Smash Bros. Melee to Super Smash Bros. Brawl. Ho-oh also has a Trophy and it can be obtained by playing Coin Launcher (most likely). It is to note that Ho-oh's attack does interfere with vision.
Ho-oh's Trophy in SSBB
A Rainbow Pokemon. On sparking wings of seven colors, Ho-oh leaves a rainbow behind as it flies. Legend says that Ho-oh suppressed a war that scorched the land in ancient times. Its attack Sacred Fire can melt ice in an instant and also damage the target with burns. Ho-oh will show its solemn figure only for the most righteous Trainers.
Ho-oh uses its attack, Sacred Fire, on some players in Pokemon Stadium 2. The big orange pillar in the center of the stage is its pillar of fire.