To put it simply, I want to play a non-strategy RPG where I can summon minions to do my bidding. Only game I remember being able to do that was in Neverwinter Nights. I didn't have the patience for it back then, not sure if I'd have the patience for it now, so I'd like some other options if possible. I'd prefer a turn-based RPG, but action or mixed is fine. Also, Western or Japanese are fine, too, so long as the "Summoner" summons something that fights alongside or for you.
Oh, and while I'm mostly looking for singleplayer games, MMOs work, too.