Triple Finish

Triple Finish is the Pokémon Trainer's Final Smash. It is the same regardless of the Pokémon that grabs the Smash Ball. The trainer brings out all three of his Pokémon. Charizard then uses Fire Blast (which is also the final move used to send the opponents flying), a large star-shaped flame, Squirtle uses Hydro Pump, a multi-directional spray of water, and Ivysaur uses SolarBeam, a narrow beam of concentrated light, to create a massive projectile which can hold targets in place within the blast. It does more damage to players that are closer to the Pokémon, where all three moves will hit at once. When an opponent is as close as possible, they take about 57% damage. However, a downside to this Final Smash can be if the opponent is too close, they will be sent straight up by a concentrated ball of energy in front of the Pokémon, and then can avoid the attack. The move can be used in mid-air, where Charizard will carry the other two using its wings, allowing the team to hover.

While using it, a box of text (like the ones in Pokémon games, based on the ones from the fourth generation games) appears on the bottom of the scene, which states, "Take this! Triple Finish!" (which the Pokémon Trainer also screams out loud), and later "It's super effective!" The text box blocks damage meters. The camera also zooms in on the trio, slowly zooming out as the attack goes on.

All three moves in the Final Smash are known for being very strong moves for their type. (In the early Pokémon generations, these moves were known as being the strongest moves for their types.)

Trophy Info
''The Final Smash of the Pokémon Trainer. Squirtle, Ivysaur, and Charizard join forces to simultaneously use Hydro Pump, SolarBeam, and Fire Blast. This is the only time all three of them appear on the screen together, so this move boasts the strength of three in one. A window will appear on the screen, but don't worry about it.''

Origin
As stated above, all 3 of the attacks come from the games. This attack itself probably comes from the Pokémon anime, where on several occasions, groups of Pokémon have combined their attacks to make them more powerful and send enemies (More often than not Team Rocket) flying into the distance.

Trivia

 * When using the attack, the Pokemon Trainer shouts "Take this! Triple Finish!" while the text box says "Take that! Triple Finish!".