sea serpent?

i'm a reptile and i can cause death in a single glance

i know it, but i can't remember it's name

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I am a eagle, mixed with a lion. I can fly, and my name starts with a G.

oo this is an easy one bless
griffin

i am a sea monster, living under a rock, that creates whirlpools

Ahh, Charybdis?

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It was said that when stood upright, his head brushed against the stars. The lower half of his body consisted of two coiled viper tails. He was said to have wings that, when spread, could blot out the sun.