find mobs that you can kill in one hit ie cows or pigs as it speeds up your grinding rates substantially, you can also get those spawners from VP crates
hey don't worry Skyblock does have ore generators, every time a piece of stone is spawned with lava and water mixing there is a 15% chance that is coal. with upgrades, it can have stuff like iron, gold, and diamonds added to the list as well
are the chickens being made by spawner?
any mobs that are spawned by a spawner automatically stack (thank god) this is to prevent lag on the server
chickens that are made by a spawner also don't seem to drop eggs at all, whether or not this is intentional is unknown