Angerboda (fire)
Wyvern
The Wyvern is a highly sought-after massive flying dragon that can overpower most creatures it faces. The deadly Wyvern, which is only tamable by stealing and raising as a baby, can be found in four varieities — Fire, Ice, Lightning, and Poison — each of which have distinct attacks.

Name ideas for your Wyvern from ARK players.
Poison: my wife
I_sleep.so.you.take.myteetmilk
If fire Kai
If corrupted the Moonwatcher moon short
His name is Le-Flap
Fire: B-52
Zeus (lighting)
Mustard gas (poison)
If black darkstalkr with no arns
LightningRod if lightning wyvern
If male ice wyvern; Jack Frost
Rateater
Deathwing if fire
For ice wyvern name it iceberg
If Lightning: SkyStrike
Fire: Firefly
Fire - Medium Rare Please
Mo.salah mo.salah running down the wing
Lightning: (male)Bolt, (female)Azure.