Vortex Cannon
From Tardis Wiki, the free Doctor Who reference
This article needs a big cleanup.
Article needs to be sourced properly per Tardis:Citation.
These problems might be so great that the article's factual accuracy has been compromised. Talk about it here or check the revision history or Manual of Style for more information.
The Vortex Cannon was a fabled and extremely dangerous weapon that was capable of destroying the entire universe. It was hidden in a booby-trapped burial ground by an ancient and long-dead civilisation. It was powered by rare treed crystals. (COMIC: Head Start, Jewel of the Vile, End Game)