Great Prank

The Great Prank was the feat of replacing Dementation with Dominate nearly clan-wide.

Overview
Shortly after the Convention of Thorns ended, Unmada and five other Malkavian methuselahs (Addemar, the Black Hag, Brude, the Dionysian and Tryphosa) led a pilgrimage of their clanmates to Domazlice.

There, the six Methuselahs, bolstered by scores of European Malkavians, enacted the ritual that removed the Camarilla Malkavians' power of Dementation, replacing it with that of Dominate. Those who had not answered the Call to this pilgrimage &mdash; primarily the antitribu, and those who made their havens outside of Europe &mdash; were entirely unaffected.

It is said that the vampires affected by the prank never noticed the difference. Many theories try to explain how did the methuselahs accomplished this feat, and some even claim that Malkav himself sensed the six's efforts and willed the change to take effect.