D4 will have Strategery AI for minions and specials

Skellies will have
Fighter- ??? named Skirmisher
Tank - Shields and Thorns, Tanks form a tank line in front of you.
DPS- Reaper scythes AOE???

Mages will have
Shadow- ??? Leach maybe?
Cold- Cold slows/freezes causes vulnerability takes more damage
Bone- ??? physical/magic mages maybe???

Golems so far confirmed
Blood golem
Iron Golem

You can opt to sacrifice your minions and gain their powers or some powers in return.