The creative options include DIY ideas, innovative storage solutions, and digital scanning
The most controversial, yet most popular Secret Lair release at the time, The Walking Dead was the first crossover to feature unique custom card mechanics instead of reprints
WotC uses their 100-card format, Brawl
This is both an advantage, since it can attack from many angles, and a disadvantage, since token production, direct damage, and artifact & land destruction push it in different directions
Real example : When a new deck archetype wins a major regional tournament, every card in that deck list sees immediate price increases
It can be any Energy and any Pokmon, regardless of their type, which is quite nice because a lot of similar cards from the past restricted what type of Energy you could attach or what type of Pokmon you could attach it to