Cosmic energy doesn't grow on trees. In fact, they don't know where it comes from or how it is produced. They have a limited amount now that Helios is no longer a star, so each use of it is their loss. Unfortunately, he only succeeded in scaring the Origin gods besieging him with this feat. He didn't succeed in making them back down and stop the hunt.
He thought to himself, "This can't go on. The plan to scare them was a bust."
Legion-7 encouraged him, "It was not a complete bust. The Supreme Alliance is just fanning the flames a little too well for it to succeed."
"Either way, we can't use cosmic force anymore. It is too powerful, but it is too costly."
Legion-7 sighed and said, "It seems you will have to reveal another one of our secrets. At this rate, we won't be able to make the Origin gods give up on us."