This is an old revision of the document!
You can buy a mob spawner at spawn for $150,00 by right clicking on the sign.
You can use them by placing them and right clicking them with a spawn egg.
Just specific mobs are allowed to be used with spawners.
Spawn eggs can be obtained by hitting a mob with an egg (Plugin EggCatcher).
please expand that list if possible
Just a few mobs can be used on spawners, if you try to set a spawner with a disallowed mob, it will result into one mob getting spawned and the spawner destroyed. This is enforced by the NoSpawnerChange plugin.