These bad boys are scary at first. You need an egg to tame em. The best way on ragnarok I found to get an egg is to 1. not engage in combat as you will die 2. use a grappling hook and parachute to get around since the lava hurts with 2k damage. The eggs are in little holes on cliffs faces. Eggs are also really easy to see since they are glowy and are huge. like, how did that egg even come out of those wyverns??