Download Soul Shards: TOW v.2.7.3 [1.12]

Unfortunately in vanilla Minecraft still no recipes Kraft spawners. Mod Soul Shards is intended to correct this situation. Using the altar you can create a special shard (soul shards), which will need to collect the souls of dead mobs. You must kill the creature to bind his soul to splinter. Please note that soul shard can contain only one type of soul. The more monsters you collect, the there will be more mobs in the generated Spawner.