Poison: Spore
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.
(Tropical) Hydro
Midir, Kalameet, Seath or Hellkite (ds)
Belch boi if poison
Jupiter if lightning
Fatalis for a fire wyvern
Ember
charizard Odin frostbite venom vampire geode
Fire:Hades Tropical:Poseidon
Pyhro
lightning: thor,thanos,zeus
Rathian if green
Iroh (fire)
Nice griffin time to die now
White wyvern: Treva the Renewer
Fire wyvern: Prossh the Skyraider
Temeraire
If lightning wyvern StormBreaker
Lightning: Bolt
Natsu (if fire male)