Here's a tutorial about having as many dragons,monsters and dragon riders by training them in a short period of time.
Cheat Engine(any versions may work
First Open Mozilla firefox/ Google Chrome.
and start Social Empires.
Click Dragon Breeding nest and see the time elapsed for you to take care again.
Next, Open the Cheat Engine and tick the Process Button which is at the top left side (the computer one) and click the process google or plug-in container.
Then tick speed hack and set it to 10000
Next Step is go to Social Empires again and click the take care button at the dragon breeding nest.
You will see that the time has become fast and only took seconds to take care of the dragon.
Click take care as many as you want.
If the browser says that illegal program has been detected, refresh the page and untick again speed hack because the game wont stop loading and loading from the start.
Repeat the same procedures in Monster Breeding nest and Dragon Riding (note: you should untick the speedhack when battle to avoid illegal program error
Hope i helped even a bit. This hack is not leeched by me but studied by me simple but usefull.