There was also a potion that could instantly refill mana. However, the effect of the potion was unremarkable, and it was surprisingly expensive. It could only be used by High Mages or those who were weaker. For the Archmages, the tiny bit of mana that the potion provided could only allow them to cast a normal spell…
The Blue Demon Potion that Lin Yun just made would be the most popular potion for mana replenishment in the next 10,000 years. It wouldn't be obsolete even in Noscent's heyday, when there were better potions for instantaneous mana replenishment, because it was affordable, and had many customers.
The average-quality Blue Demon Potion could fill a level-5 Archmage with mana in three seconds. The best-quality Blue Demon Potion could even let a level-9 Archmage regain at least 50 percent of their mana instantly, and be fully charged in only a couple of seconds.