Most powerful duo

Natsu and Gray!!! They're mega buff bois, hehe! (and hot, too!)

They may be enemies, but when they come together and fight like a powerful team, at least 10 and a 1/2 cities could be destroyed! Hot dang!

Other option is Gray and Juvia! Their unison raids are 👌🏻 and it's even cute!!!

(sory for the many GIFS of my boys 😉 they're just, you know, HOT)