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.
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.
Doom led Wolverine and the Autobots to destroy the Prism. Ramjet didn't particularly care too much and flew away.
- The Psycho-Prism wasn't just cooked up for this crossover, with a more fully-functional version having been previously employed by the good doctor in Marvel's 1987 Avengers graphic novel, Emperor Doom. And now you know! And Knowing's half the battle! "G.I. Joe!"