Galactus jailed his servant, but Fallen One broke out and attempted to kill his former master. Very little is known about how he and Galactus worked together, though Fallen One lost his position when he reveled in the destruction too much. Instead of being granted Power Cosmic, he was fueled by Dark Energy. The first known Herald of Galactus is called Fallen One.

It is also nearly impossible to permanently kill a Herald. In most cases, even the Heralds that Galactus severs ties with are allowed to keep their powers and live. He often plays with their minds and memories to keep them docile for as long as possible. Over the eons, Galactus has tried a number of different Heralds, all with different personalities who have served him to varying degrees of success.

Many also use a weapon to channel their cosmic energy. These beings are often met with hostility, so their powers also have defensive and offensive capabilities. The energy imbued by Galactus fuels the Herald's life force, which allows for them to survive unaided in space, not needing to consume anything themselves or rest unless incredibly depleted of energy. The Devourer can, and has, guide the results, though. The Devourer grants each Herald a portion of the Power Cosmic to aid them in their efforts.Īccording to Thanos' research, the Power Cosmic creates a different kind of being every time because the form it takes follows the function of the individual. Over the eons, Galactus has taken on Heralds to aid him in the finding of those worlds. As a force of nature, Galactus must consume planets for the energy and sustenance he needs to carry on his tragic existence.

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