i consider it an honor and a privilege to be the 164st commenter.
unfortunately for everyone, these crest ideas are the best. you just can't do better than this lemme tell ya.
magikarp crest: magikarp can leap over mountains. splash is now a 250BP move that always paralyzes (due to the shock of being hit by a fish at mach 4.)
grimmsnarl crest: takes ur kneecaps
g-weezing crest: gives your character sprite a top hat
a-eggy crest: makes all pokemon on the field have a long neck
deliberd crest: each use of present gives you 2000P. happy birthday!
g-meowth