"That was Frieza! He cut him into bits, like it was nothing."
Shining Sword Attack (シャイニングソードアタック) is a rush attack used by Future Trunks. Future Trunks flies up and comes down to vertically slash the opponent with his sword. Next, he slashes the opponent multiple times, chopping them up into bits. Finally, Future Trunks draws his hand back and brings it forward to fire a yellow energy wave at what's left of the opponent, inflicting a high amount of damage.
Future Trunks used this attack in his Super Saiyan form during his battle against Mecha Frieza. Believing that Future Trunks was killed by his Supernova, Mecha Frieza and his father King Cold became distracted long enough when Future Trunks fired a Burning Attack out of nowhere. However, Mecha Frieza jumped in the air to dodge the attack, though while he was stunned, Future Trunks attacked him with the Shining Sword Attack, putting an end to the cybernetic evil tyrant. The first slash is named High Strike in the Dragon Ball Z Collectible Card Game.
Later, Goku landed on Earth, and to make sure he was Goku, Trunks tried to do this attack on Goku as well, but Goku blocked every Rapid Sword Stream slash Trunks made with only his index finger, to which Trunks responded: Those were the same moves that killed Frieza!
Future Trunks also attempted to perform the Shining Sword Attack in his base form against Android 14 in the movie Dragon Ball Z: Super Android 13!, but the first vertical sword slash was blocked by the Android, who then punched Trunks away before launching the sword back at him.
Appearances in games
Shining Sword Attack was named in the Budokai Tenkaichi series, where it is Future Trunks' (Sword) Ultimate Blast in his Super Saiyan form. In Dragon Ball Z: Ultimate Tenkaichi, this attack is one of Future Trunks' super attacks in his Super Saiyan form, and his ultimate renamed Lightning Sword Slash in his base form.
It is Future Trunks' meteor attack, named Meteo Hell Slasher, in Dragon Ball Z: Ultimate Battle 22. The technique is a special attack called Burning Slash (バーニングスラッシュ) in the Budokai series, Dragon Ball Heroes, and Dragon Ball: Xenoverse. in Super Dragon Ball Z was named Slash Break. It was called Shining Sword in Battle of Z.It is Future Trunks' grapple throw in Dragon Ball Z: Supersonic Warriors, and Super Saiyan Trunks uses it as part of the Garlic Buster, his team attack with Super Saiyan Vegeta, in Dragon Ball Z: Supersonic Warriors 2.
Future Trunks can also use the attack in Battle Stadium D.O.N.
In Dragon Ball: Xenoverse, it appears under the name "Burning Slash" and appears as one of Future Trunks' Super Skills. It can also be obtained as a reward by the Future Warrior in Parallel Quest 24: "Power Teams", though it can only be used by the Future Warrior if they are either an Earthling or a Saiyan. It is one of two sword based techniques used by both Future Trunks and the Future Warrior (the other being Shining Slash). In the GT Pack 1 DLC, it also appears as one of Infected Trunks' super skills.
"A serial sword attack. Succeed and use the move again to fire a follow-up Ki Blast!"
— Dragon Ball Xenoverse 2 Skill description
In Dragon Ball Xenoverse 2, Burning Slash returns as one of Future Trunks' Super Skills which can also be obtained by the Future Warrior (Xenoverse 2) as a reward in Parallel Quest 44: "Dragon Balls of the Future". Like in Xenoverse, it can only be used by the Future Warrior if they are an Earthling or a Saiyan.