Basil's History
Dragon Ball Super
Basil and the other members of Trio the Dangers are selected to participate in the Zeno Expo, a small lead-up tournament that precedes the Tournament of Power. Universe 9's team is matched up against Team Universe 7, with Basil fighting Good Buu.
At the beginning of the match, he assaults with Buu with a barrage of kicks and laughs while doing so. Buu seemed unaffected by his attacks, even after using his special charged kicks. However, as he released his power, Basil hurt Mr. Satan who was spectating the fight causing Buu to get serious and completely trample Basil before knocking him out of the ring.
During his fight with the non-serious Buu, he was first shown to effortlessly pummel him with a barrage of kicks, sending Buu to the ground. Using his kicks, he was even able to deflect Ki blasts from Buu that were fired at him. Upon getting more serious, Basil appeared to send more ki to his legs to strengthen his attacking power, blasting a hole through Buu, while dealing no damage whatsoever.
However, once Buu got angry, and blew steam to power up, Basil ends up battered and broken, almost unconscious outside the ring. However, Zeno and Future Zeno weren't satisfied with the fight ending like that, so they wanted it to continue, as different rules meant that Basil had not yet lost as a victor is only decided when one fighter can no longer continue to fight or gives up.
After Roh gives him something to eat that allows him to transform into a buff version of himself, he resumes his battle with Buu and fights on par with him, even seemingly overwhelming him. However, Buu yet again resists his attack and fires a powerful ki blast at him, this time a powerful Majin Kamehameha.
While Basil was able to remain standing after the attack and prepared to continue fighting, his drug wore off and he collapsed, having taken too much damage from Buu's onslaught.
After the preliminaries, Basil and the others are returned to their world. Goku and Gohan have a mental image simulation of him fighting Krillin.
Back on their planet, unlike other universes - The Trio of Danger, Sidra and Roh have a difficult time recruiting members. However, they managed to rally 7 other members by the time of the Tournament of Power.
Once the Battle Royale began, Basil started out by briefly clashing with Top. He then fights and defeats Rylibeu of Universe 10 by making her fall out of bounds. Before that happened, both him and Hit incapacitated Narirama's arms to disable his spin attack. He later fought against Napapa and nearly made him fall out of bounds, afterward the Trio De Dangers, Chappil and Hopp set their sights on Goku. He fights him with Bergamo and Lavender and Vegeta after he comes to Goku's aid. After having the rest of the team defeated by the Saiyans, Basil attacks them with his brothers but are utterly defeated. Having the Trio de Dangers being defeated, Team Universe 9 was erased by both Zeno along with their universe and gods, Sidra and Roh.
In the manga, Basil arrives alongside his brothers and the other members of Team Universe 9 to compete in the Tournament of Power. Early on the trio face off with Team Universe 3's Pancéa, Koitsukai and Narirama. The trio go on to attack Gohan and gain an edge over him thanks to their teamwork, though when Gohan sees Piccolo in trouble he is able to knock them away with an explosive wave. The trio then regroup with the rest of Team Universe 9 as the entire group face Gohan and Piccolo, however before they can begin to fight Frost interrupts and eliminates the entire team aside from the Trio of Danger, who retreat. The trio then begin their attack on Gohan and Piccolo once more, when they split up Bergamo tells Basil and Lavender to go after Gohan, however as they leap towards him they are both knocked off stage by Frieza. When Frieza goes on to eliminate Bergamo, Universe 9 is erased.
Basil is later revived with his universe when Android 17 uses the Super Dragon Balls to resurrect all of the universes that were erased.
