Poison Wyvern: Great for PVP because it can kill the rider off a creatures back if they aren’t careful. WARNING: the poison spit, even if the wyvern belongs to you, the AoE CAN KILL YOU without a gas mask or hazard mask.

Fire Wyvern: Great for getting more eggs as their immune to other fire wyverns (others are immune to your fire too) allowing your wyvern to just melee bite them. This includes alphas!

Lightning wyvern: Great for PVP and Bosses. Their lightning breath can deal torpor, (and a lot too) and has a horrifying DbT (damage by tick) making it very capable to shred bosses in numbers and other tames. However, if you or a tame gets in the way, the breath can also hurt them, so it is best to also invest in health.