I have players that all want animal companions now that the ranger has one from Martial Power. I also have a player who wants to have npc companions come with him. I was thinking of allowing them to have animals and other npc companions with them but automatically make them all minions to discourage the use of them. The reason is that with all the animals and npc's things just seem to bog down, especially in combat when everyone wants their animals and npc companions to get involved. What do you do in 4e for this situation?