However, there was one limiting factor he had overlooked: she couldn't maintain more than two mana threads continuously for hours. She could push herself to do it, but it left her mentally exhausted.
Even with unlimited mana at hand, she could not use more than 7,000 to 10,000 mana points worth of liquid mana per minute with just two mana threads. The spells she could execute with that were barely advanced grade or lower, and even those left her mind exhausted. It seemed unlimited mana wasn't truly unlimited for everyone—only for those who had mastered mana control. Even the best mage, like the Spellmaster, could not extend more than a fraction of the mana threads that Damian could. So, even with vast reserves of mana, they wouldn't be able to accomplish as much as he could.
Still, if Vidalia could reach five to seven mana threads, her mana expenditure limit for third-rank spells would be easily covered, allowing her to use over 50,000–60,000 points worth of mana liquid per minute.
