Ee, Nouryoku Nashi de Party Tsuihou sareta Ore ga Zenzokusei Mahoutsukai!?: Saikyou no All-Arounder Mezashite Kenkyo ni Gambarimasu

Tyler is an adventurer who, for some reason, does not possess the magical attribute that everyone else has. He is abandoned in the depths of the dungeon by the party leader for his lack of magic. However, while trying to save his childhood friend Ariana, who stayed behind with him, his hidden powers are awakened! It turns out that he has an unprecedented ability to use magic of all attributes. After escaping the dungeon, Tyler hears that there is a medicinal herb that can cure his sister's illness, and he forms a new party with the goal of challenging the super-advanced dungeon. Living a fun and humble adventurer's life with his reliable friends!

(Source: Alphapolis, translated)