Energy Storage Potion
The item that the Earth player threw to Sterl before dying was a benefit available for purchase at various intermediate bases after joining the Spark Project.
[Rapid Energy Recovery Potion]
[Produced by: Humans of Earth]
[Effect: Instantly restores 10% of maximum energy, slowly recovers 150 energy points]
[Note: Successive use halves the effect each time.]
There were a total of fifteen potions, and it seemed that the Earth player had thrown out all the potions he had at once.
Moreover, there was a plus sign on this energy recovery potion!
After his continuous pursuit and release of Celestial Stars against the alien players, he indeed had a huge expenditure of energy. These energy potions relieved his urgent need. However, there was the side effect of reduced efficacy with continuous use.