The Pokémon Bank goes live on December 27th, and to encourage fans to make use of the service, Nintendo and Game Freak are giving those who download it a special treat.
If you download and access the Pokémon Bank application on your 3DS between December 27th, 2013 and September 30, 2014, you'll be rewarded with the "Mythical Time Travel" Pokémon Celebi. This creature comes with Hold Back, a move which cannot be learned via normal gameplay and which always leaves the target with at least 1 HP. This Celebi also has the moves Recover, Heal Bell, and Safeguard in its arsenal.
You'll need to use the Pokémon Link feature in Pokémon X & Y to gain this special Celebi. After receiving the Celebi gift within Pokémon Bank, selecting Pokémon Link will deposit the new monster into your PC Box within the game itself.
Will this compel you to use the service when it launches?