Neck strap is included
The BT6 Double Diamond set introduced new key pieces for the deck such as a secondary boss level six Digimon in Titamon and also gave the deck Ginkakumon Promote, a level four purple Digimon with easy access to Rush that also gained you a memory when resurrected with the right materials
Pokemon Sun & Moon Base Set Lunala Elite Trainer Box [8 Booster Packs, 65 Card Sleeves, 45 Energy Cards & More] Pokemon Sun & Moon Base Set Lunala Elite Trainer Box [8 Booster Packs, 65 Card Sleeves, 45 Energy Cards & More] OUT OF STOCK Estimated ship date NOTIFY ME WHEN AVAILABLE Email address submitted
This means it's not possible to cheat creatures into play out of nowhere (which madness can do), but it also means you're granted more flexibility, because you can cast a spell for its mayhem cost at any point during the turn in which it was discarded (rather than having to choose immediately as per madness rules)
One that has grabbed my attention is Ratonhnhakton due to it being a nifty Equipment Matters-commander in Esper colors
This is an easy way to immediately gain access to a Rank 4 XYZ monster