Crystal Wyverns are exceptionally fast, breedable flyers suited to travel and combat, with tropical types gaining a boost near water, blood types healing from their draining breath, and ember types strengthening their fire breath. Standard Crystal Wyverns are generally docile, but keep clear of their breath and be prepared for them to take flight; the aggressive heirs are a much greater threat, so avoid approaching them without a strong mount and an escape plan. They can be passively tamed with crystal while perched on their back, and parachutes offer a backup if you fall.