Summary Fairy Tail cemented itself as one of the most popular shonen anime in the last couple of years by sticking to the theme that friendship can triumph over anything, which made it a heartwarming anime that fans could latch onto. It continues to regain popularity, with the 100 Years Quest arc scheduled for an anime release next month. Hiro Mashima, the mangaka of Fairy Tail, also created another series called Edens Zero that drew a lot of similarities from its predecessor.
Fairy Tail gives a sense that everything will turn out positively with the power of friendship, while Edens Zero presents that there can't always be a happy ending, but there is still room to move forward with loss. Natsu and Shiki have unique fighting styles, and it would be interesting to see them face off against each other.
Shiki uses Satan Gravity Ether Gear, which allows users to control their gravity. He can also use Overdrive, an advanced form of ether gear that enables the Ether Gearist to increase their power and perform beyond their standard capacities. When Shiki uses Overdrive, his strength increases immensely, and his gravity becomes so powerful that he can make black holes that pull everything in sight.
A battle between Natsu and Shiki would be very destructive, given what both characters can do with their powers. Natsu has a slight advantage over Shiki in terms of battle experience, since he has been through more difficult battles than Shiki thus far. Natsu has also faced gravity users in the past, such as when he fought against Blue Note and defeated him with use in their second meeting.