See discussions on Large/Rare evo gems around but not much on small/medium evo gems so thought I'd start something. I was playing the Fire dimension dragon dungeon over the weekend for the completion stone and noticed that the dungeon also drops the samurai dragon and a 50% chance of dropping a dog dragon. So if you farm on a 2x day, you're guaranteed a medium gem (dimension dragon), small gem (samurai dragon) and a 50% chance of an additional gem (dog dragon). Time to start farming? If anybody knows of any other good places to farm, please share.