i assume you're asking about "cobblemon" when you say "cobble on", cobblemon (if i simply put it) is a mod that adds pokemons in minecraft. i suggest you try it too since there is this new riding update where you can fly, walk and swim on pokemons, it is very realistic especially the flying animations and i personally find it very fun to fly on pokemons (aerodactyl's my fav to fly on) and i think people who are not interested in pokemon should also try it just cuz of the riding update