Psycho-Prism

The Psycho-Prism is a rage-inducing object from the Generation 1 continuity family.

The Psycho-Prism is a gem-shaped object developed by Doctor Doom with the intention of mind control, but is only at the level of causing a blood-curling rage wave.

Fiction

IDW Comics continuity

The New Avengers/The Transformers

The Psycho-Prism was stolen from Doctor Doom by the Decepticons so they could instigate war between Latveria and Symkaria. Doctor Doom and Ratchet were able to construct counterdefenses against the Psycho-Prism's aggression wave.

Unwilling to give Ramjet's Spider-Man's Energon goodies, Megatron ordered him to guard the Psycho-Prism. Man and Machine, Part Two

From Teletraan I: The Transformers Wiki, a Wikia wiki.