Where can you find Bedivere Crests in Kingdoms of Camelot?

You can find them anywhere, attack level 6-10 level wilds constantly. What I've been doing is to attack a wilderness, then abandon it, then attack it again. Keep repeating those steps of attacking and you'll have it in no time. Remember 6-10 wildernesses and don't attack higher level wilds because they aren't more likely than a level 6 wild to have a crest, also use 100mm and 5000 archers for level 6 wilds when you attack.