Crimson Dragon

Any attack that has a red band behind its name will count towards this.

This can be earned with the Bloodskin and Blackbone's Primary attack. You can also find Food items that teach variations of the move to your other dragons as a secondary attack.

Hey guys the easiest way to get this is fully level up your dragon that you get at the start and replay the final mission all you do is the first sequence then restart since that the beginner dragon has the beam that targets six enemies use this on the boss you should get the achievement in know time