Board Thread:Questions and Answers/@comment-142.136.251.137-20130214025706/@comment-81.56.56.227-20130411050943

Provide you have a diamond dragon, getting a crusader is pretty straightforward.

Just breed dragon + fire. Outcome will most probably be fire. But since fire dragon breeding time is 10 seconds, you can try again almost immediately!

It took me 40 tries to get a crusader, but no longer than 10 minutes :-)