ClavisAngemon
ClavisAngemon is a Virtue-class Angel Digimon carrying the X-Antibody. Its whole purpose boils down to one job: guarding the Zenith Gate, the boundary between the Digital World and everything beyond it.
The gate itself is secured by 360 separate doors—a lot of locks to manage. That's where ClavisAngemon comes in. It carries "The Key," which works as a master key to open or seal every single one of them. Here's the thing though: The Key isn't just some tool it happens to have. It's so intrinsically tied to ClavisAngemon's existence that the Digimon and the key are basically inseparable. Only ClavisAngemon can actually use it.
The power woven into The Key is genuinely terrifying if you think about it. Fans often note that it's theoretically capable of unleashing enough destructive force to collapse the entire Digital World. That said, this apocalyptic potential only activates against intruders desperate enough to force their way through the doors—so it's less an indiscriminate doomsday weapon and more a final safeguard.
Content compiled by AnimeList.moe from publicly available sources.