How can i fight vs one of these? i try this in history mode:
"In order to fight him, you must see all three endings of a character in Arcade Mode, regardless of difficulty. After doing that, that character must go through Arcade Mode again on at least Medium or higher difficulty. The player must not lose one fight, get two Supreme Victories, one Ultra before the Rival character, and Ultra the Rival character to unlock the Shadow Jago fight. If the conditions are met, the final fight against Fulgore is skipped and Shadow Jago is fought in the Shadow Tiger's Lair instead"
GOT IT, it seems you need to do it in harder and above difficulty.