Aramis

Chaos, tranquility, nothingness. In some far corner of the universe, where nothing comprehensible exists, an undescribable blob split into many more little blobs, each generating incredible qualities due to the way nothing had logic or made sense. Aramis, the weapon crafter, was one of many blobs born from that event. Sent to habitate Earth with other blobs, they all had the mission to not bother the living beings of the planet unless extremely necessary. Of course, that would've been boring, so the group agreed to help earthlings only sometimes, as a little treat.

Expectedly, Pongo's sudden attack on Earth is what would count as an emergency to the dimension rascals, so they are willing to help the planet's inhabitants against this looming threat. 

Aramis was bestowed the gift of weaponscraft, being able to produce out of thin air any weapon it has seen once. What counts as a weapon to it depends entirely on what it feels is a weapon. Since its mood is unpredictable, what it can create ranges from a hammer, to a sword, to a ham leg. Aramis is exceptionally skilled at this, but has a big problem- it cannot create specific weapons, or custom weapons, or unique weapons. It's all generic!