Board Thread:Trading/@comment-26141073-20150305062545/@comment-25353417-20150305063240

Prince, Queen, & King gives you tons of exp while Jokers help u break lvl (i.e. u can continue to level a lvl 25 Yellow Emperor to lvl 35 after you used Joker of Earth).

Don't use Jokers on normal summon spirits though, they should be used on ssome event spirits or Adv SR.