(Lightning) strike

Poison wyvern: giving everyone the coronavirus

(For blue lifhtin)aqua

Torch (fire)
Voltage (lightning)
Butcher (blood)
Prism (crystal)
Avalanche (ice)
Viper (venom)

Your local flamethrower (if fire wyvern)

Poison: Taco Bell, Venom, My ex

Fire: Scorpion
Lightning: Raiden
Poison: Reptile
Ice: Sub-Zero

Smaug

Elizabeth (Dragon from shrek)

Alduin (Skyrim)

lightning wyvern: Zeus