This is going to sound possibly nerdish;

But I want my Dragon to come from within me, IE like a roaring dragon spirit rushing from my body as I strike my foes down (lol) or, I would like the ability to temporarily summon a full fledged dragon, depending on my highest stat (PIE, STR etc) it would do something to all enemies or all allies on the battle field.

Oh and I want a dragon soul ability that adds survivability, maybe some kind of shield or regen? Who knows.