Legendaries Speculation/Discussion Thread

Discuss the new legendary Pokemon here for the 6th gen games! They are X and Y themed, as per the game names (surprise surprise).

All posts, speculation or not, should be constructive and contain ideas, support/elaborate their ideas, and must contribute to the discussions and/or on-going arguments. Also, one-liner posts such as "I agree.", "I want [this] to be in the game!", "This sucks!" will all be considered SPAM, deleted and you will be possibly infracted.

Let's promote a worthwhile discussion!