It takes Four, apparently by Starwarrior4ever on DeviantArt
The Big Four
Jack and Elsa in Hogwarts. Jelsa forever!
Jack as a professor?
Elsa is studing when Jack and Hiccup are... Well... Sleeping. "Boys..."
The big four. Jackunzel & Mericcup
rise of the brave tangled dragons | Tumblr
Love is an Escape ♥: The Big Four : Wizard Wannabe!
We call it Magic.! (RoftBTFD)