Well so far on my
Minion Witch I'm level 13 and my horde currently consists of:
3 Zombies (consumes corpse to summon)
7 Skeletons (only last 20 seconds and summon 2 at a time)
I'm liking it so far but my only complaint is that the minion AI is terrible. They spend most of their time running around in circles instead of attacking things

But when they do the zombies hit like trucks.