Legendary Heroes

The Legendary Heroes are a group of people who led their group of DigiDestined/Tamers/Generals/Hunters to win the final battle against the main villain digimon. They come from separate universes (with the exception of Tai Kamiya and Davis Motomiya, and Taiki Kudou and Tagiru Akaishi.)

The Seven Legendary Heroes

 * Tai Kamiya - Agumon
 * Davis Motomiya - Veemon
 * Takato Matsuki - Guilmon
 * Takuya Kanbara
 * Marcus Damon - Agumon
 * Taiki Kudou - Shoutmon
 * Tagiru Akashi - Gumdramon

Digimon Hunters
In Episode 78 of Digimon Xros Wars, with the help of Old Clock Shop Man and Clockmon, the past heroes from other worlds came together to help the Hunters defeat Quartzmon. They were needed to pull up the Brave Snatcher, so the Hunter Representative would use it to defeat Quartzmon. After Ryouma betrayed them all and injured Taiki, he gave his goggles to Tagiru to represent him. Tagiru pulls up the Brave Snatcher, but the Legendary Heroes had to go into the Brave Snatcher to give Tagiru their power. After Tagiru and XrosUpArresterdramon Superior Mode defeat Quartzmon, Tagiru becomes the seventh Legendary Hero.