This series introduced us a new element to the Transformers universes, Dark Energon By all means, it's basically the energy that's opposite to Energon. As Starscream pointed out, the Anti-spark. It turns the dead Cybertronians into undead/zombie Cybertronian, hence the word. Anti-spark But if that's the case, wouldn't it kill living transformers? So far, it's proven to have different effect on Autobots and Decepticons. To the Autobots, it does what green Kryptonite does to Superman(and other Kryptionians) its energon weakens them, saps their strength, which has been confirmed by Arcee and Ratchet. To the Decepticons, Dark Energon's energy strengthened Megatron more than harm him, and it has kept him alive at brink of death, then restored him to health. And it obviously had no ill effect on Starscream either. So what does this mean? Dark Energon strengthen evil and destroy good? Or is it the difference in the programming of Autobots and Decepticons? If's it's Anti-spark, shouldn't it cancel out Deceptions' sparks as well?