This can be used in a pvp setting. If you shoot someone with it, all creatures around a 70m radius will come to your aid. To use in a pve setting, simply shoot anything and everything else will come after it. It essentially adds “tames” for you within a short period of time. Use wisely as these are not cheap!

If you stuffed a rare flower into a tranquilizer dart

These count as tranquilizer darts to make more pheromone darts

the industrial grinder glitch also works with these similar to the shocking tranquilizer dart

If you shoot an unconscious creature with it, every creature near it will freeze as if you got disconnected on multiplayer.