Back in 2014, the Yu-Gi-Oh! Collectible Tins made way for the Mega Tins. Instead of regular booster packs, these new tin boxes came with 3 copies of a Mega Pack that featured cards from expansions that were released in the previous year. Many of these cards now featured different rarities, though, so it was either easier to get your hands on them or you could make your deck look a little nicer with a foil version of a former Rare card. More information about the 2016 Mega Packs on our Mega Packs site.
The 2016 Mega Tins comes in 2 different versions. The Yugi and Slifer Tin packs a tournament legal Secret Rare version of the Egyptian God Card Slifer the Sky Dragon, 2 Ultra Rares (one of which is Dark Magician) and 3 Super Rares. Additionally, you'll find 3 Mega Packs in the tin box.
The Kaiba and Obelisk Tin features a tournament legal copy of a Secret Rare Obelisk the Tormentor, 2 Ultra Rares (one of which is going to be Blue-Eyes White Dragon) as well as 3 Super Rares. Just as expected, it also sports 3 2016 Mega Packs.