I want to make monstermakers that create 1 monster, but after that monster is spawned, it cant spawn another monster again until the group of monsters is killed. I know this probably has to do with triggers, but I would rather ask here before doing this on my own and screwing things up.

Theres going to be about 5 or 10 rounds of monsters that I need. How would I make the death of a monster trigger its own monstermaker to temporarily turn off until all the monsters are killed?