Pomazok1329 EotW 2, thanks for the links. It's a shame the first one is in English; I'm reading and "digesting" the second one.
I played it not so long ago, but as far as I remember:
1. We won't kill the Titan Master anytime soon; he'll appear when the brown enemy comes after the Barbarians, I think.
2. We get the blood bubble from the Drakon King; he'll appear later. In my opinion, the battle with the Dragon King is one of the most difficult on this map (maybe Merlin and the Inferno father are a bit harder).
They give 225 gold Dragons for the dragon bubble.
Regarding Genghis Khan, try using "walking on water"; it's more useful than ever on this map.