Portal!Chara is a mysterious, yet powerful being of the Undertale Multiverse that can transport anything and everything from one place and time to another. They use that ability sparingly as they require a "Fee" for their services. They're mostly hired to imprison dangerous threats to the multiverse, along with guarding certain areas from harm.
Appearance
Their appearance was similar to Chara, but with their entire body being grayscale. Their skin are usually pitch black with the only light came from the eyes mouth and cheek of their face. When about to transport someone or some thing, their entire body became a doorway, showing the destination.
Personality
They seems to have a sassy demeanor, yet polite enough to help those who require their services. They still untrustworthy towards Humans, going by their past experience of course; yet they warmed up to some of them. Given their past trauma, they're disrespectful towards religion; and hostile towards alcoholics (especially Drunk!Chara).
Abilities
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Multiversal Omnipresence: is technically Everywhere and Nowhere within the Undertale Multiverse.
Multiversal OmniSight: Like W.D. Gaster and CORE!Frisk, they can observe the entirety of the Undertale Multiverse.
Multiversal Visibility: Can manifest a visible form in any place and time in the Undertale Multiverse to interact and communicate with their inhabitants. However, they're unable to physically interact with their environment due to their condition.
Void Transportation: Their most powerful ability. They can transport anyone and anything to any place and time that they desire. When activated, they seems to envelop the object or person before disappearing; in reality, they became a portal and transport the object or person to the destination. They create a service in which they let their customers use that ability in exchange of chocolate. There’s no place that they can’t access.
@core-chara replied to your post: seeing someone on your dash that you know IS a...
/Honestly, when that happens to me I prefer to tell them to be a bit careful uwu
the thing is that, while yes id do that to look after my pals afterall id never want them to get backstabbed like me and another mado rper did, some may see even that as some form of call out, or that im ‘spreading hate’ about a certain person to friends