His Honorable Tyranny had black blood.
http://www.mspaintadventures.com/?s=6&p=005654
==> Submitted by 777crimsonchaos
==> Submitted by Anon
http://www.mspaintadventures.com/?s=6&p=003490
==> Submitted by nekozneko
http://www.mspaintadventures.com/?s=6&p=003807
==> Submitted by intothetoybox
http://mspaintadventures.com/?s=6&p=001932
==> Submitted by theoneandonlygamebro
It was Vriska who said it, here: http://www.mspaintadventures.com/scratch.php?s=6&p=005805
==> Submitted by homestuck-the-epic
http://www.mspaintadventures.com/?s=6&p=006256
==> Submitted by pir8crabs
So it would make sense for Highbloods such as Vriska and Gamzee to have psychic powers.
Source : Jake: Respond
==> Submitted by featherblack
Aradia has spoken with Doc Scratch before, seemingly consulting him for information to Bec Noir’s appearance in their session, or for information concerning the Scratch.
Therefore, Doc Scratch has spoken to Vriska, Kanaya, Karkat (briefly), Gamzee, and Aradia as far as the trolls are concerned (Barring Terezi who contacted him).
==> Submitted by 777crimsonchaos
Bro has hidden webcams around the house…
==> Submitted by the-thief-of-sound