I was hooked the first time the Viltrumite reveal hit in 'Invincible' — and Oliver's powers follow that same brutal, simple logic. If you mean Oliver from 'Invincible' (the kid tied to Nolan/Omni-Man’s world), his abilities come from biology: he inherits Viltrumite DNA. In this universe powers aren't mystical artifacts or random radiation accidents; they're genetic. Viltrumites are a superhuman race, and their physiology gives them strength, flight, durability, and longevity. When a Viltrumite reproduces with a human, the offspring often show that heritage once their body develops enough to express it, usually around adolescence.
That timing is important because the show and comics play with that puberty-trigger idea a lot. Mark (the main ‘Invincible’) wakes up one day and notices changes — same general pattern applies for other half-Viltrumite kids like Oliver. The powers are latent until the body reaches a certain stage, then they manifest pretty dramatically: rapid increases in muscle strength, resistance to injury, sometimes sudden flight. It’s not always a neat, synchronized event — some folks get abilities earlier or later, and emotional stress can accelerate or reveal things, especially in a storyline packed with fights and family secrets.
Personally, I love how grounded that choice feels. It makes the whole parent/child dynamic sting more: powers aren’t a cool power-up you choose, they’re something you’re born into and then must reckon with. Watching those first confused days — when a kid realizes they can lift a car or fly — ties the cosmic Viltrumite stuff back to real, awkward adolescence, and that’s a big part of why the story lands for me.