Go back to carbo village after you save that starving village talk to the preast after that go to house #3 talk to the dude he will say my wiveleft me go to the green haired girl at the fountan she will say I hate my husbnd bla bla bla go to the house #3 he will thank you for trying to help he will give you a holy cross take it to the preast he will bless it than take it to the woman at the front of the cherch she will say I wanted one of those I don't have anything to trade take it to my husband the shop ok go to the shop sell the cross to the shop keeper get 1000sp go to elans skill page at the thair is a new thing to lern use 1000sp and walla you have ultra bomb it takes half of everybodys hp (eaven BOSSES!)