With the recent reintroduction of Spawner Levels I have seen a lot of players asking for a explanation of what exactly this is, so this post will do just that. Spawner Levels were first introduced on Factions Gold. The basic premise is that you use Exp to rankup your spawner level. You will not be able to place or purchase mob spawners if you are not a high enough level. You can still mine spawners as normal. The current levels are as follows: Level 1 - Chicken Spawners Level 2 - Pig Spawners Level 3 - Cow Spawners Level 4 - Skeleton Spawners Level 5 - Zombie Spawners Level 6 - Spider Spawners Level 7 - Creeper Spawners Level 8 - Blaze Spawners Level 9 - Enderman Spawners Level 10 - Slime Spawners Level 11 - Zombie Pigman Spawners Level 12 - Iron Golem Spawners Each level requires an increasing amount of Exp to rankup. You can rankup using the command /rankup or /levelup. It will tell you much Exp you need to acquire the next level. You can also use /checklevel to see what Spawner Level you are currently at.