In need of help - not technical

I'm looking for a game on DS which has elements of like pokemon - where you can evolve and such
or digimon world - evolving / breeding.Or even something like shin megami tensei where you aquire demons to which you can fuse together in different combinations to make cooler demons.Something along those linesAnyone know of anything similar on the DS ?Thankyou

Dragon Quest Monster Joker?

lol it's funny because im just-this-minute downloading that very game!Is it any good ?