Okay, now we are going correct way. Still I see in your text a lot of useless description which I don't need.
About the first idea, it's just basic a chance on attacks to summon some minor enemies. Well, it could work but how is that tactical? Well it doesn't always need to be that tactical. Still I don't see that very unique idea.
About second idea, where does the flame come from, is there a chance to evade it, and how I actually do that?
The third idea is actually nice that the dragon would take a character away. But I've a problem with it too: the model doesn't have such animations so I'm limited with this case. I can make the dragon fly, etc but I can't do that.
Okay, let's hope you'll continue with ideas. I would also suggest others to do the same.