I like it to but I think they need worked on a lot because the rate between good dragons and crap dragons nobody wants to go for seems off.
Infernal and the mana/hp regen dragons I like but they seem a lot less common than the mountain and cloud drags.
I get the point, they tried to make drag more relevant but I think they failed. The old drag system would have worked better if they altered the way in which you got bonuses. I.E not getting an ATK boost for your first drag.
Now it's just like they're completely forcing drag fights at some points and at other points it's just like oh okay it's 4v1 lets go pick up this movement speed boost drag.