Apparently collectible Destiny trading cards that were given out at different gaming events during 2013. On each card is either a location, weapon, enemy or Guardian class. There are codes you redeem when you log into your Bungie.net profile and will unlock something (currently unknown) when the game launches. Use this link for quick access: http://www.bungie.net/en/User/coderedemption 1. Warlock: YKA-RJG-MH9 2. Hunter: 3DA-P4X-F6A 3. Titan: MVD-4N3-NKH 4. Rixis: TCN-HCD-TGY 5. Old-Russia: HDX-ALM-V4K 6. Hive: 473-MXR-3X9 7. Moon: JMR-LFN-4A3 8. Gjallorhorn: HC3-H44-DKC 9. Duke MK.44: 69P-KRM-JJA 10. The Tower: 69P-VCH-337 11. The Hive: Ogre 69R-CKD-X7L 12. Valley of the kings, Mars: 69R-DDD-FCP 13. The Fallen: 69R-F99-AXG 14. Red Death: 69R-VL7-J6A 15. The Cabal: 69X-DJN-74V 16. The Devastated Coast, Venus: 6A7-7NP-3X7 17. Vex Minotaur: 6A9-DTG-YGN