Articuno

Articuno is the brother of Zapdos and Moltres, and the calmest of the three. He is loyal to Lugia, but would prefer the true one.

Appearance
There's nothing special about Articuno in terms of appearance.

Personality
Out of the three legendary birds, Articuno is the most benevolent and devout. On occasion he will flaunt his icy beauty by flying among several areas and sparkling. He prefers to eat fish from the ocean around his home of Seafoam Islands.

Zapdos
His "sister", Zapdos and him spend the most time together. Her bouts of rage and violence are balanced by his calmness and rationality. They serve Lugia together.

Moltres
His other "sister", Moltres used to really get on his nerves with her stuck-up attitude, but she has since changed into a more respectful creature. She does not respect Lugia in the same way he does, however, and that is a point of seperation between them. Moltres came to respect them again after an April Fool's prank allowed Articuno to speak to her in the past.

Anthony
Articuno was drawn to Anthony when he gained his Lugia form, and after spending a little time with him realized that this was not his true lord. Moltres was not willing to play the "beggars can't be choosers" card and left them, which led to Articuno departing from the "pseudolord", as he called him. He does not know of his true Dunsparce body.

Lugia
Articuno's lord and father, he has pledged undying loyalty to the great legendary. Lugia has apparently passed the baton, after death, to a slightly younger version of himself. This Lugia has met Articuno before, and though Articuno noticed that something wasn't the same, he still believed that this Lugia is his father, until he outright said he wasn't. Articuno attempted to be Lugia's friend, but to no avail, causing the Lugia to be consumed by evil.

Torch
Torch is a Torchic from Shamouti Island. Articuno has grown to respect him for his defeat of Shadow Lugia, something that Articuno was not willing to get involved in. This culminated in him asking Torch to be his heir, and he started off with endurance training for Torch, having him stand in cold water for extended periods of time until he could bear it much better. Articuno also plans on extending Torch's repotoire of moves.

Other
Articuno tends to befriend Ice-types, and Ice-type masters like Pryce and Candice. He usually won't associate with lesser Pokemon unless they are in desperate need, however.

Trivia

 * Articuno was made on July 10, 2012, concurrently with Zapdos and Moltres. At the beginning of September 2013, his average tweets per day were around 5.
 * Since his creation, Articuno has gained an average of 1.1 followers per day.
 * Like the others, "Gyaoo" refers to the in-text cry of Articuno when you examine it in the original Kanto games.