One

One Integer, commonly known as One, is the main antagonist of Battle for Dream Island: The Power of Two, the fifth season of the Battle for Dream Island web series.

She is a mysterious deal maker and a self-proclaimed old friend of Two, the season's host. After emerging from a damaged moon, she began to observe both Two and the contestants from a distance. Eventually, she made her presence known by appearing before them and subsequently abducting them. Initially, One presents herself as friendly and helpful, offering the contestants things they desire in exchange for future favors. However, her true intentions are far more sinister. One's ultimate goal is to acquire Two's immense power for herself, and she is willing to manipulate and coerce others to achieve this end. Eventually, she does achieve both Two and Four's power by the hands of Pencil in return by sending her back in time to "fix her past". As of now, she is somewhere across the universe wreaking havoc with that power. She is also the arch-nemesis of Four.

One is a cartoonish, hand-drawn anthropomorphic Arabic numeral one, characterized by her simplistic design and pale light blue hue. Distinguishing her from other Algebraliens seen throughout the series, One is notably armless, a unique feature that sets her apart. Her legs match her body color but are of a slightly lighter shade, providing a subtle contrast to her overall appearance.

One on the surface appears to be an eccentric yet mysterious individual, preferring to keep herself hidden from the rest of the contestants unless needing to make a deal with them. While it may seem like she genuinely wants to help the contestants at first, it's all a ploy so she could achieve her own goals and gain Two's power for herself.

One is shown to be incredibly manipulative and opportunistic, taking advantage of the situation the contestants are in, such as convincing Fanny to take a deal for a new mouth in exchange for owing her a favor down the line. While she will usually follow up on her deals, she is not above changing her mind about certain details, such as deciding to not end the storm she caused in the first place even after Basketball took her deal in exchange for her to fix Robot Flower, showing that she isn't exactly honorable.

One's true power and malevolence is shown when she helps trigger the ripping of the entire BFDI reality just to make Gaty sign her deal. Once she does, she effortlessly fixes all of the damage done. This shows how her want for Two's power (allegedly) is more important than the lives of the rest of the inhabitants of the BFDI universe, and that she is willing to do anything to achieve her Goal, even if it means the wiping out of billions of peoples lives or the Fabric of Reality itself.

One is also shown to be mentally unstable, showing when she ripped off Donut's limbs after he rejected her deal and kicked her in the face. She also shows acts of sadism when she laughed after mutilating him viciously and telling him what happens when he disobeys her. Her instability is also shown when it was shown that her room is completely messed up. She also gets angry when her plans fail and things not going her way, showing when she crosses Donut's name after he rejected her deal and dismisses it. This was also previously mentioned when she told Basketball about how they were "alike" with not being a fan of things not going their way. In TPOT 19, even more evil is shown through her by making the Earth go dark and literally messing with space, as well as obliterating an alien species in space and kicking the Earth out of orbit.

⚡Powers and Abilities!⚡: Nigh-Omnipotence (from The Power of One): One has shown to possess near limitless levels of power, However she states herself to be seemingly weaker than Two and by extension Four, in her line "I do have power, but not enough" (but could also just mean that she wants more power despite being the strongest), and her entire reason of offering deals to the contestants is to gain Two's power. However, even without Two's power she is still unimaginably powerful. She is shown to have near unrestricted control over fundamental forces including space, time, matter, and energy, and is seemingly able to grant any request made in her deals, like granting a person new limbs or restoring someone's original personality. However, One truly shows how powerful she can be in "Seasonal Shift" when she returns reality to a more stable state before the rift in space-time opened, seemingly with just a snap. Overall, One has been shown to be able to do nearly anything anyone could imagine, showing that while she may (supposedly) fall short in power compared with the likes of Two and Four, she is still a godly being in her own right. Super strength and/or telekinesis: In "Outbreak At Stake", she may have kicked a hole through the Moon in the second post-credit scene, or she used telekinesis to break a piece of it off. In "What's Up Bell's String?", she used telekinesis to hold Fanny's new mouth and the contract list. She is also able to easily kick the Earth away in "Last One Standing", though this was shown after she gained most of Two's and all of Four's powers by Pencil. Nigh-Omnipresence: One can be seen being in some of the contestant's dreams and hiding in plain sight in certain scenes. The contestant's dreams include: Black Hole, Pen, Winner, Barf Bag, and Book, but One is still in reality, meaning she can be in multiple places at the same time. Technology/Electricity Manipulation: As seen in "Category One", One is able to manipulate Robot Flower's mind to go back to her previous self, and it's implied that they're also capable of making her personality even more destructive. She can also appear inside screens, as seen in the beginning of "Seasonal Shift". Reality Warping: One has the ability to change, create, or even destroy parts of Dreamier Island, Grasslands, and possibly any other places indirectly only by using a miniature of the location she wants to warp in her dimension. She is also able to make the rift in space-time shoot out reality-warping lightning bolts via her miniature in "Last One Standing". Anomaly removal: In "Seasonal Shift", she was powerful enough to restore the entire world back to a more stable state before the Rift in Space-Time opened, probably by making it as if most the time traveling never happened. (However, since the rift itself was just reduced to a more manageable state for Black Hole, it's likely either she wasn't strong enough to completely fix it, or she didn't fix it on purpose to use the rift as leverage on her future victims. This seems more likely since she was completely fine with endangering all of existence since she is completely safe within her dimension.) Atmokinesis/Weather Manipulation: In "Category One", with her ability to warp reality, One can change the weather and create storms to cause havoc. Chronokinesis/Time Manipulation: In "Last One Standing", One is revealed to be able to remove people from existence, some of these include: Basketball, Gaty, Barf Bag, and Pencil (possibly). Teleportation: One is able to teleport herself and other people as seen in "What's Up Bell's String?". Super Speed: In "What's Up Bell's String?", during the Team Swap, One runs around shuffling the contestants, finishing in just 17 frames, or less than a third of a second, all while Two is looking away. By the time that someone says something, One has jumped back into the bush, leaving Two and all of the contestants oblivious to what happened. Conjuration: One can create objects out of thin air, as seen when she conjures a document for Fanny to sign in "What's Up Bell's String?", creating body parts to offer Ice Cube and Fanny, or in "Seasonal Shift", where she creates a remote while talking with Gaty to show her what happened to the eliminated contestants she took. Pocket Dimension: As seen in "What's Up Bell's String?" and "Category One", One can create pocket dimensions and manipulate the contents at will. Black Hole Immunity: As One was shuffling the contestants, she moves Black Hole effortlessly without being warped by his gravity. In "Last One Standing", One teleports Black Hole to her pocket dimension without any issues. Body manipulation: One's foot extends and grows in size as shown in "What's Up Bell's String?", in order to grab Fanny. Power Draining: In "Seasonal Shift", she drains the Yoylite pieces of their time traveling powers, and it's implied she can do this to other Algebralians as well, either via her contracts or draining them of their powers forcefully. Obfuscation: In "Bottle For Dream Island", she is able to ensure that certain contestants (notably, Tennis Ball), and even Four, cannot comprehend the research that Ice Cube and Fanny done on her, by obfuscating the contents of the whiteboard along with Pillow's research notes when Golf Ball tries to read over them. In "Last One Standing", Four is able to reverse One's obfuscation effect on the whiteboard. Dismemberment (Possibly): In "Bottle For Dream Island", she is able to use her own telekinesis to take Donut's legs by force. This may just be a use of her telekinesis rather than it's own ability. Most of Two and all of Four's powers: In "Last One Standing", Pencil signs One's deal to give away all of her power, which were from Two and Four. Snowball still has a part of Two's power, meaning she does not have it all. Her on-screen uses of these powers include shooting lasers out of her eyes that easily destroy faraway planets, killing aliens, bending, warping, and kicking the Earth, and flying through space at super-speed.