The Interloper

The Interloper is the main villain of the Vintage Horizons storyline. Due to the stories in which The Interloper was meant to appear never being finished, little is known about them outside of what few notes and snippets Fungustober wrote for the character.

Description
In the story snippets for Vintage Horizons, The Interloper is described as being similar to "shattered glass in the rough shape of a humanoid," with each "shard" of it reflecting a body part that corresponds to the point where the "shard" is on The Interloper. The denizens of the multiverse who the reflections belong to seem to be entirely random. The reflections often shifted, displaying different images. As the reflections on the mouth area shift, The Interloper's voice changes. The "shards" are separated by an amount of black, and the edges of each "shard" shine with different colors. It's possible that The Interloper originates in an alternate universe, as the Vintage Horizons story deals with the concept of characters from the multiverse we know meeting characters from an alternate multiverse.

Abilities
It is unknown what the extent of The Inteloper's abilities are, as there is not enough writing on the character, however it is implied that they have the ability to travel within and outside of the multiverse altogether, as the story snippets describe where the characters in the Vintage Horizons story fight The Interloper as "a space that exists outside of space." It is possible that The Interloper has some sort of magical abilities, as the conceit of the story is that it is trying to merge every multiverse into one by using the corpse of Lora as a power source.

Vintage Horizons
The Interloper would have only appeared in the very last of the story articles written for Vintage Horizons, if all of them had been written. In the story snippets, it's revealed that The Interloper was behind all of the characters from our multiverse meeting characters from alternate multiverses by attempting to collide every alternate universe together. The characters from our multiverse plus an alternate version of Urza attempt to defeat The Interloper, but everyone except the alternate Urza is defeated (although the story snippets do not elaborate how), leaving the alternate Urza to try and stop every universe from crashing into each other. Eventually, the alternate characters join in the fight, helping the main universe characters up and "The fight ends with the interloper[sic] being stabbed through the chest by Thalia, the cathar. The body of the interloper[sic] crumbles…" It is unknown whether or not The Interloper is dead, as it was never clarified by Fungustober.

Planeswalkers met

 * The Alternate Chandra
 * The Alternate Jace
 * The Alternate Nissa

Planes visited

 * Yenire
 * The Interloper's Realm

Trivia

 * The true name of The Interloper is not known, as it only introduces itself by saying "In some circles, I am referred to as 'The Interloper.'"
 * Someone referred to as "the interloper" appears in the flavor text of the Vintage Horizons card "Your Silence Is Appreciated." It is unknown whether or not this is the same The Interloper that appears in the Vintage Horizons story.