Latias is a legendary Dragon/Psychic Pokémon first introduced in Pokémon Ruby and Sapphire. It's the female counterpart to Latios; typically it appears as a minor or event-only legendary, but it gets a bigger role in Omega Ruby and Alpha Sapphire.

Latias is one of my favorite Pokémon, and has been for a long time! ^_^

Trading Card Game

I don't know much about actual TCG gameplay - while I do collect the cards, I do so only for the artwork - but Latias has a lot of interesting and pretty cards!

In the EX Delta Species expansion, Latias got a card where it was Lightning/Metal! That's two gimmicks in one - Delta Species, which are cards with abnormal typing, and dual typing (usually not done in the TCG). The illustration is cute, too - it shows Latias hanging out around the Holon Research Tower, an area in the TCG world.

Latias has three different Fire-type cards, all connected to the Delta Species gimmick: two in EX Holon Phantoms, and one ex card in EX Dragon Frontiers. The artwork for the ex card is very nice! The poor thing kind of looks like it's in the shrimp posture, though. That's my job...

There are only two cards that have both Latias and Latios on them, oddly enough. The first of these, a jumbo card promoting the movie Pokémon Heroes, is so obscure that there isn't even a good scan of it anywhere - the image seen here is cropped from an eBay listing. The card calls the duo 'Bestowers of Dreams', which is a gorgeous title.

I do have two Latias cards of my own - number 105/172 from VSTAR Universe, and the HGSS Promo Latias. The latter is one of the older cards I own, and one of my favorites. It has a matching Latios card, and when put together the illustrations show them flying together. The sky backdrop is really pretty..

Other Cool Trivia

• Latias is obtainable without limited-time events or DLC in Sapphire, Emerald (mutually exclusive with Latios), HeartGold, White 2, Alpha Sapphire, and Ultra Moon.
• In side games, Latias is also obtainable without limited-time events or DLC in Channel, Pinball Ruby & Sapphire, both Trozei games, every PMD game except the Light/Stormy WiiWare games and Gates to Infinity, Ranger: Guardian Signs, every Rumble game except for the first, the 3DS Picross game, and Shuffle.
• Latias is capable of refracting light with its glass-like feathers to hide itself or appear to change its appearance. It uses this to masquerade as a human girl in both the Pokémon Adventures/SPECIAL manga and the movie Pokémon Heroes.
• The official origin of Latias' name (as revealed in the Teraleak) comes from the ancient Greek dialogue Critias, written by Plato.