Juubi(Naruto) vs Acnologia(Fairy tail), Page 7

Except we know Gai didn't achieve it through some Jutsu. There are literally a handful of people who can use space time Jutsu, and Gai isn't one of them. The only jutsu we've seen Gai use is the summoning Jutsu, IIRC.

Media] in a real death battle between know two real fighter who would be the winner ? : r/fairytail

Juubi(Naruto) vs Acnologia(Fairy tail), Page 5

Fairy Tail Natsu Defeats Zeref + Acnologia Death English Sub

Battle #4 Acnologia vs Kurama (Fairy Tail vs Naruto)

Juubi(Naruto) vs Acnologia(Fairy tail), Page 5

9 Jinchuuriki replace the 7 Dragon Slayers - against Acnologia - Battles - Comic Vine

Mangas, WRA