First off, play through the game until you reach the final level, which is this island at the bottom of the map.

Your first objective is making a path through the middle of the map, between all the towers.

When you are near the final two towers (highlighted in red), start making a zig-zag path towards the side containing Xitrof.


This ensures you're guaranteed to capture him, and not mistakenly capture the empty side.

When you're close enough to the top edge to avoid any enemies escaping, STOP.

All that's left is waiting for Xitrof to lay his eggs (?!) until 15 dragons hatch.

If you don't know what the egg looks like, look at the achievement icon.

You may want to keep physical count as continually counting via what's on screen can be disorientating.

After capturing Xitrof and the 15 Green Dragons, complete the level my capturing the rest of the strongholds.

That's it!

This should also earn you 'Face off' if you haven't been able to earn it yet.

Also, while it's possible to do this on harder difficulties, you're better off doing this on the easiest difficulty, to avoid tearing your hair out.

Thanks for reading!