A Person of Mass Destruction leaves rubble in their wake, but some people add to the surroundings rather than wrecking them. A Person of Mass Construction can also be a Person of Mass Destruction, either at different times or by razing the scenery to make room for their own. It can simply be mundane construction, overlapping in video game examples with Command & Conquer Economy, and on the other side of the Super Weight scale, characters with the Power of Creation often fit this trope. However, things must actually exist to count as this; Alchemists from Fullmetal Alchemist would count, but not Green Lanterns, as their constructs are temporary. There can be Real Life examples of people or groups that produce improbably large amounts of things.
By definition, Construction and Management Games make the player this.
Compare Gorgeous Garment Generation.
- Almost all alchemists in Fullmetal Alchemist can create anything they want out of the ground, raw materials lying around, or even their own bodies.
- In Naruto, after the battle against Pain, Yamato helps rebuilding whole districts of the Leaf Village by himself with his Wood Art. Though he claims to be very tired afterwards.
- Franky in One Piece serves as the Straw Hat Pirates' shipwright and carpenter. In his first arc as a Straw Hat, Thriller Bark, he puts these skills to use by doing things like constructing a very detailed and ornate bridge while the others with him have their backs turned discussing how to cross a huge gap. In the battle with Oars, he constructs a much more simplistic staircase as fast as he and Chopper can climb it to get them into position for a punch to the giant monster's jaw.
- In Psyren, the First Star Commander of W.I.S.E, Grana, is first seen using his simple, yet astounding telekinesis to assemble an entire base of operations (which likely includes all the machinery, cables, conduits and whatnot) from scratch in about 2 minutes, as if it was a Real-Time Strategy game.
- In a battle between Cable and Silver Surfer, the only reason there wasn't massive devastation in the clash between the two god-like beings is because whatever damage they caused they also repaired within nanoseconds, meaning that the Innocent Bystanders caught between them never even noticed that anything had ever been destroyed.
- Magneto can use his Magnetism Manipulation to create as easily as he uses it to destroy. He's constructed multiple space stations in this way, including his various Asteroid Ms and Avalon (though Avalon was a pre-existing station called Graymalkin that he expanded and modified). He's also prone to erecting statues of himself (either as tribute to his ego, or as a warning, depending on who you ask), as demonstrated in 2018's X-Men: Blue, and in the same year's Uncanny X-Men (though this time, they were statues of Nate Grey, who seems to have him on a leash, and they're made of soldiers' guns).
- Magneto's disciple Exodus also wields powers capable of both creation and destruction, though in his case he wields high-order telepathy and telekinesis. After the original Avalon was destroyed he constructed a New Avalon in the arctic north (though he had to abandon it as its launch into space would have killed millions) and later in X-Men Legacy he used his telepathy in combination with his telekinesis to read Cable's memories of a future Cerebro machine and then build it in the present day out of a S.H.I.E.L.D. Helicarrer.
- Superman was originally very much like this; he might wreck something, but he would rebuild it at Super Speed, and helps out community construction projects, as well as building things on the fly to help combat villains. (His heat vision and super-cold-breath began as New Powers as the Plot Demands, welding metal together "with the heat from my x-ray vision" and then freezing it into place.)
- Supergirl is just so quick taking apart the landscape like putting it back together. She has been known to get a giant breakwater up in seconds to protect San Franciso from a tsunami.
- This became a plot point in the solo series of Nate Grey, the X-Man, when Nate's high-order telekinesis started literally putting people back together in his sleep. He restored a doctor's arm in this way, as well as resurrecting Madelyne Pryor outright. Unfortunately, he was creating psionic constructs rather than actual flesh and when his focused slipped, most of what he created vanished (save Madelyne, who used her own power to liberate her body from its dependency on Nate).
- The Flash is able to use his Super Speed in order to repair any damage that his battles may cause. One of the biggest examples occurs in the 2010 flash series when Barry Allen rebuilds an apartment that was completely destroyed by an explosion.
- In Child of the Storm, Magneto's space station base 'Avalon' a.k.a. Asteroid M is mentioned repeatedly throughout the first book, before appearing in the second. It's about 3/4 the size of Hogwarts, and with the exception of a few life support systems provided by Mar-Vell, entirely made by Magneto himself, who caught and hollowed out the asteroid, before building it - and with his powers, he can create rooms, collapse them, and alter walkways however he sees fit. This is widely considered to be very impressive - and Harry, whose Psychic Powers are vast, says that while in theory he's got the power to do it, he wouldn't know where to start in actually doing it.
- Referenced and Played for Laughs when Fandral tells a small child that whenever Thor tries to use Mjolnir to put up a house, he ends up knocking the house down (though in this case, he's just lying).
- In the How to Train Your Dragon fanfic A Thing of Vikings, Hiccup, a creative person by anyone's measure, uses dragon-aided labor to create massive amounts of infrastructure, including water powered mills, an underground bathhouse, floating pile-drivers, and other such things, and has plans in motion to create a mail-network that will span Europe.
- Fix-It Felix Jr. from Wreck-It Ralph is a guy who can both fix anything and build anything in a blink of an eye.
- The Master Builders on The LEGO Movie, who are able to build anything out of random pieces in seconds.
- Queen Elsa from Frozen can use ice powers to construct a giant castle for herself filled with giant doors and a spiral staircase, all in the course of a single song!
- Big Hero 6: when demonstrating his microbots, Hiro shows how they can be applied to construction by using his microbots to build a roughly 10-foot tower in a matter of seconds. Yokai, alias Professor Callaghan later uses the microbots to reconstruct Krei's teleportation device as part of his revenge scheme against Krei.
- Bran the Builder from A Song of Ice and Fire is said to have built Winterfell and Storms End, two of the strongest castles in the world, as well as the Wall in the north. Many characters, however, doubt that he actually existed, or that he was a single person.
- Empire Star has the Lll, a race that the Empire reluctantly keeps as slaves because they are the only cost-effective way to rebuild planets which have been destroyed by war. Just a handful of Lll is enough to restore the most ravished planet.
- When the Dark Curse from Once Upon a Time is enacted, it causes an entire town to form itself in the middle of the woods in Maine, right around the people camping there! A clock tower, a bed-and-breakfast, town hall, the mayor's office, a well, elaborate mines, a port and more can all be yours, just for the price of the heart of the one you love most!
- In Supreme Commander, you begin with a single Commander, who builds up a base that can eventually produce massive numbers of units, some of which can build more buildings, making more units...
- In the Civilization games, a city with high Production can build every turn buildings or units that usually take many turns to complete.
- The point of Scribblenauts is to solve puzzles by creating things with your notebook, including castles, planets, dragons, and cheese.
- The player character of MySims Kingdom is part of a legacy of these known as "Wandoliers." As the name suggests, they use a magical wand assigned by the Crown to construct domestic items for the troubled denizens of the kingdom. The player character of the original MySims is a similar story.
- Mickey Mouse, thanks to his magical paintbrush, can instantly make giant structures appear mid-air in Epic Mickey. He can't choose where the structures go, but if he slaps Paint in the appropriate place, he can create giant buildings, advanced machinery and the greatest construction of all, love.
- Every character present in any LEGO Adaptation Game can rapidly create complex structures, assuming a pile of interactive LEGO Bricks are around. This especially goes for characters with Telekinesis (ex: the Jedi, Wizards, Green Lanterns), who can manipulate LEGO Bricks from a distance.
- White Mage in 8-Bit Theater accidentally created the entire universe the comic takes place in at the beginning of time.
- Most of the Sparks in the main cast of Girl Genius are the gadgets-and-gizmos building sorts, whose scientific prowess and engineering savvy (and reality warping abilities) allow them to construct giant robots, death rays, fantastic medical equipment, and coffee machines out of stuff they find lying around. They work fast.
- In Homestuck Sburb players usually become this, often turning the houses of their client players into tall and bizare complexes by copy-pasting various parts of the already existing house on top of it. The size of the buildings is only limited by the score the client achieves.
- Freefall's population of Ridiculously Human Robots was manufactured to Terraform and construct a colony on the planet Jean, so their acts of civil disobedience tend to look like this:
Police Officer: Rampaging robots built a gazebo in Mrs. Jones' back yard! They're reroofing her neighbor's house as we speak!
- While not all of Phineasand Ferb's inventions can be called massive, they have certainly demonstrated the ability to build just about anything, including things in the realm of impossible, in just one morning. Their accomplishments include multiple sport arenas, a giant aircraft made witf paper, a skyscraper that goes to the moon, a rollercoaster that spans through a entire city, multiple amusement park rides, and many robotic animals, to name a few.