You're the best person I can think of to ask this question of. Does Euron want to become or has he already become a God? The Greek god of the unlucky East and Southeast wind is Eurus. Does Euron want to become the Wind God of ASOIAF, we already have Fire, water & earth gods. How about him completing the set as the God of Wind? I don't know if you watch BBC's Sherlock but his totally mad & brilliantly evil sister is called Euros. Am I thinking too much into this?
“The first storm will scatter us across half the earth.”
A smile played across Euron’s blue lips. “I am the storm, my lord. The first storm, and the last.”
Euron can indeed control the weather–hence the storm the night Balon died, covering up the Faceless Man killing him on Euron’s behalf, as well as this:
The wind was at their backs, as it had been all the way down from Old Wyk. It was whispered about the fleet that Euron’s wizards had much and more to do with that, that the Crow’s Eye appeased the Storm God with blood sacrifice. How else would he have dared sail so far to the west, instead of following the shoreline as was the custom?
But that makes him an extremely powerful mage, not quite a god, and anyway I don’t think he’d be content as a purely elemental deity. Euron won’t stay in such a well-defined box, which is part of what makes him so dangerous. He wants everything, Fire and Ice, dragons and warlocks and pirates: “I say we take it all!” Moreover, he’s not planning to share:
Impaled upon the longer spikes were the bodies of the gods. The Maiden was there and the Father and the Mother, the Warrior and Crone and Smith…even the Stranger. They hung side by side with all manner of queer foreign gods: the Great Shepherd and the Black Goat, three-headed Trios and the Pale Child Bakkalon, the Lord of Light and the butterfly god of Naath.
And there, swollen and green, half-devoured by crabs, the Drowned God festered with the rest, seawater still dripping from his hair.