Archmage: God-level Modification System

"Ronaldo transmigrates to a world of sword and magic and becomes a talentless mage apprentice. Others would only need to study for a year to gain basic control of elemental energy and become a mage apprentice. However, even after five years in the magic academy, he remains a mage apprentice who cannot control elemental energy and cast magic. He believes that his life would end with mediocrity when he suddenly awakens the God-level modification system. Anything that's modified by the God-level modification system can be used by him. ""Congratulations, Host, for activating the modification system. Speed+999999."" ""Comprehending the Hundred Steps of Divine Alacrity, breaking through to beginner… adept… mastery…grandmastery!"" … ""Congratulations, Host, for activating the modification system and successfully modifying the fireball spell into the fire-elemental forbidden spell, Heaven-burning Flames."" ""Congratulations, Host, for activating the modification system and successfully modifying the windblade spell into the wind-elemental forbidden spell, Wind God's Wrath."" … With that, a mage that relies on a modification system to cheat is born."