Those who are born able to wield their mana (Black Clover) are able to perform feats based around the mana attribute that they were born with like the Four Main Elements with their skills based on training and/or natural talent…
…and those who have basic mana control can enhance their physical prowess and encase themself in a constant Mana Skin for defenses from harsher the environment…
…highly advanced users are able to perform Mana Zone, where one controls the natural mana around their environment increasing the power and range of their spells.
…the Heart Kingdom devised a unique method of using natural mana into their spells using the Mana Method to give simple or complex commands by creating runic arrays.
Mages (Fairy Tail) are capable of channeling and use their magic power in order to cast spells that are unique to their particular form of magic, which can be taught to them or inherited.
Dragons (Fairy Tail) such as the Fire Dragon King, Igneel are one of if not the strongest beings on Earthland most able to use their own Dragon Slayer Magic, which can be taught to humans.
Celestial Spirits (Fairy Tail) are immortal beings able to use their own particular form of magic, but their overall strength tends to be dependant on their Contractor's magic power.