So, the main use of this magical tattoo was actually to convert excess energy into magical tattoos during non-battle times and then employ the spells contained within these tattoos to launch large-scale bombardments on enemies during combat.
Regrettably, these magical tattoos were not permanent but could only exist for a fixed duration determined by the caster's Intelligence Attribute, with the minimum duration being one day.
As for Zhang Yanhang's Intelligence Attribute, he estimated that maintaining the magical tattoo for a week should not be a problem.
"I feel like I could perhaps combine this magical tattoo technique with my enchantment skills to create a more convenient and optimized version. Previously, due to the lack of suitable enchantment materials and my own lack of magical ability, despite gaining enchantment capabilities after upgrading alchemy, I had never used it.
