So it is possible (in theory... so far I've only seen 2 Bishops and 1 monk under my control..) to have six Priests, six archers, and six minotaurs under your command at 1 time I do believe. I will test today after work, and post a screen shot to support my theory, but this is pretty OP. Totems can be cast, then resold. Something needs to change.

I've never seen 18 minions under one person before, and I don't do it as it feels pretty lame. I have a few ideas. The first is simple...

2 Priests, 2 Archers, and 2 Taurs can be under your control at any time. New summons will replace old summons, and currently summoned minions will die upon casting.

The others are...

Make totems unsellable, and the new totems replace the old ones.

Or...

Make totems into upgrades buyable at the store. The cost can be reduced for each level, but you need to buy all 3 levels to get to the top.