First of these was the Burst potion, which worked similarly to the empowering Berserk potion, which Grandmasters could already make. People knew this as the potion that could allow a person to go beyond their usual limit, or to maximize their power, for a short period of time.
However, instead of targeting someone's ability to capture a huge amount of aether for a moment, the Burst Potion was inspired by how adrenaline worked. It was designed to allow a person to temporarily push through their limits for several minutes. It worked best for people level 15 through 30.
Of course, the safe usage was once every several days or longer for low-leveled individuals, and they had to rest well.
The Berserk Potion was technically safer and could be used more often, but the ingredients were insanely difficult to procure, and it could only be used by people above level 20, and wouldn't work past level 30.
