Big Guardian 6

Big Guardian 6 is the name of the crossover between Rise of the Guardians and Big Hero 6. It is quite a popular concept in the RotBTD fandom.

About the Crossover
There are several scenarios that fans like to imagine for this crossover. The most common and popular scenario is when Tadashi becomes a Guardian after he dies--most fans like to give him fire powers, due to the fact that he died in a fire. In this scenario, fans like to have Tadashi meet Jack Frost (either as friends or romantically) and the other Guardians, and keep watch over his little brother Hiro.

The other well-known scenario involves Hiro meeting up with Jack Frost instead. After Tadashi passes away, Jack is the one to bring fun and happiness back into Hiro's life.

This crossover is where pairings such as Jadashi and Jackoney are most commonly found.

Popular AUs

 * Superhero AU
 * Seasons Guardians
 * Modern AU
 * Hogwarts AU
 * Genderbend AU

Fanfiction

 * Invisible by Forever-Tangled
 * In the Hours of Darkness by The-Silver-Butterfly150
 * I Never Left by Sushi Hawkeye
 * Guardian of Warmth bycharliehigsonruinedmylife
 * believing by fairytalelights