It is not known to evolve into or from any other Pokémon. It is said to be a relative of Delibird[1] or a version of Delibird[2] from a different timeline.
This section is incomplete. Please feel free to edit this section to add missing information and complete it. Reason: Replacing the blurry TCG image with an APNG from the games.
Iron Bundle extending its wireIron Bundle firing a blast of ice
Iron Bundle is a red Pokémon resembling a robotic bird. Its face is covered in white plating with two three-pointed crests above its blue eyes. Black markings surround its circular eyes, and it has a light yellow beak and feet. There is a single blue spot on its stomach. Its feet have two digits each. A metallic ring is visible around its neck (which hides a wire allowing it to extend its head over long distances), and its "bag" is attached to its body by a black and blue cable.
There are only two reported sightings of Iron Bundle. According to an article from an October issue of Occulture magazine, Iron Bundle was described in the Violet Book as a being that resembled Delibird possessing a spherical apparatus from which it would fire huge blasts of ice to propel itself through snowy lands. An unproven theory suggests it is the product of a long-gone civilization, as supported by ancient writings that describe the design and usage of machines resembling the Iron Bundle. While asleep, it turns itself off, causing the energy on its belly spot and "bag" to disappear, making them black.
According to AI Turo, Iron Bundle is a future Pokémon and a relative of Delibird, However, according to a Turo that did not bring out any Paradox Pokémon yet, Iron Bundle is a parellel version of Delibird from an alternate timeline. Which of these is its true origin, is currently unknown. It was brought to this era/timeline in the depths of Area Zero by a time machine built by the actual Professor Turo ten years ago.
Iron Bundle has the longest Japanese Pokémon name in romaji, with 15 letters.
This name is longer than the character limit of Pokémon nicknames in the Western releases of the games, which is 12 characters.
Origin
Iron Bundle is based on Delibird. Its extendable head may be based on the jack-in-the-box or similar toys. The spherical device it carries around may be inspired by snow globes or snow blowers, and its feet resemble water skis.
↑AI SadaS/AI TuroV:"Through analysis of its genetic makeup, as well as its behavioral patterns...I came to realize that what I had discovered was in fact an ancient/futuristic form of Cyclizar, the Pokémon commonly ridden in this region."' (Pokémon Scarlet and Violet)
This Pokémon article is part of Project Pokédex, a Bulbapedia project that aims to write comprehensive articles on each Pokémon species, as well as Pokémon groups and forms.