Martin Variety in American Comics

Super detective, great adventurer, little dragon, super human... Martin, who becomes a new character every morning when he wakes up, came to the American comic world on his 18th birthday.
Superman: "Although the letters on his chest are different, Martin is indeed my half-brother!"
Flash: "Although I am the fastest man in the world, I am no match for Martin!"
Batman: "I can plan to include the whole world, but I can't do anything to Martin!"
Martin: "I'm just an adventurer passing by!"