Exaggerated: Five minutes into the episode as Baron Unbearable is wrapping up explaining his evil plot to his henchmen, Invictor casually steps in having foiled his Evil Plan.
Invictor wins on average more than the bad guys, but if he ever relaxes he may lose badly.
Invictor is never depicted losing, but he's in a Slice of Life show where winning and losing don't really affect the plot since there isn't much of one in the first place.
Justified: Invictor just makes it seem this way to goad enemies into being careless, he actually plans incredibly carefully and employs dozens of clever and resourceful people to prop up his "invincible one man act" persona.
Inverted: Invictor is an entertainingFailure Hero, who despite his constant defeats keeps the audience engaged.
Subverted: Invictor seems poised to defeat Baron Unbearable when his Pride causes his defeat.
Double Subverted: ... only for it to be a clever ploy to get Baron Unbearable to reveal his Evil Plan.
Parodied: The world Invictor lives in is a sanitized Sugar Bowl with no villains and only mild interpersonal disagreements as the worst conflicts. Invictor is utterly desperate to find something, anything to beat in this happy world where no victory is even possible because of a lack of conflict.
Zig Zagged: His might and intellect makes Invictor unbeatable, except he pays the newspapers to hide his defeats, but even that is actually a clever cover story to hide his inhuman perfection.
Lampshaded: "Oh no. Baron Unbearable has let loose his miniature killer bears. Invictor can't possible defeat them for the 27th time in a row."
Invoked: Invictor wants to psych out enemies, so he pays a publicist and hires jobber villains to lose to him.
Exploited: Baron Unbearable creates Xanatos Gambits that succeed based on Invictor never losing.
Defied: The author is well aware that, though he wants a happy ending and not to hurt his characters, avoiding all loss will make the story worse. So he lets Invictor lose— and painfully— at key points.
Discussed: "Oh great, Invictor just arrived. Might as well just surrender and save ourselves the embarrassment."
Conversed: "Why would anyone watch a show that basically boils down to 'watch this guy solve everything without even a hint of risk'?"
Implied:: Banter between Invictor and Baron Unbearable suggests they actually arrange their fights ahead of time with the same outcome (Unbearable losing) as a sort of superheroics game.
Deconstructed: Sure, Invictor never loses, but the same can't be said about everyone else on his team or side. Against enemies with such massive resources that they can afford to win through attrition, Invictor's allies begin to defect fearing for their lives.
Reconstructed: Refusing to give up, Invictor fights harder to protect his allies. Eventually, his allies become invincible in their own right and the bad guys are defeated.
Plotted A Good Waste: The reason Invictor never loses is because in a world of stark absolute Black and White Morality where Evil Only Has to Win Once, there can be no champion other than Invictor; where it so the world would long ago have been destroyed. The characters use a device that can look into Alternate Universes and see they are the only one in one trillion universes to not be a barren wasteleand precisely because Invictor keeps winning.
Played For Laughs:
Invictor is actually Blessed with Suck: no one wants him to play in team sports because he's considered an unfair advantage, he's not allowed within 100 KM of Las Vegas, and people find him insufferable and avoid him because he always wins arguments.