Skena (the wyvern I just lost)

Fire: Scorpion

Lightning: Raiden

Poison: Reptile

Ice: Sub-Zero

Petra (female)

Smaug

Fire: fjordur Lightning: shocker poison: Skena

Spyro

Poison wvy ( like the plant)

Poison: Taco Bell, Venom, My ex

Fire: Kai

Lightning: Jay

Poison: Lloyd

If female poison, Medusa