Looking at the difficulty level, I think my comprehension ability is good enough to Practice this mental method.
After gaining some clarity, I decided to choose the first one. Though it's extremely hard. As long as I manage to reach the limit, I can use the system to level up. Besides, one of the main functions of the system is to actually level up the limit. I wonder if it has any constraints over the grade.
I sighed in my heart, It doesn't matter if I'm constrained or not. I want an earth grade method. There is no reason to leave just because of the difficulty.
After gaining clarity. I clicked the first mental method in my mind.
[>> User: Vincent Carey]
>> Magic: Gravity]
>> Mental Method: Gravity Ark (Yet to upload)]
[Welcome to the Library Section]
[>>Mental Method (Accessible)
>>Spells (Accessible)
>>Combat Techniques (Not Permitted)
>>Weapon Techniques (Not Permitted)]
