Make a mob spawn INSIDE a custom structure

Make a block and use events to make that block spawn the mob and make that block dissappear.

You could put a mob spawner in the schematic with the specific mob in it, that is what I do, and it works very well. The only downside is that there is a physical mob spawning block there at all times.

dotBeta, Cover it with carpet or intergrate it in a wall. Works for me.

Hi guys!!! Plz help me too. I want only one mob of a type spawn  there. Like only one king mob in a castle. Mob spawner will spawn more than 1. Plz help guys.

I think that you can save your structure including mobs no ? when you create it, in the saving options of the structure block, you can save also the entities

can someone help? im making a custom mob and i want it to only spawn in bastions is that even possible?