With other draw cards like Professor's Research and Mew ex (Pokemon 151) keeping a player stocked on resources already, Mystery Garden just adds another layer of consistency to a deck type that doesnt necessarily need it, but makes it all the better for it
Hobbyist magazines, already tracking prices of sports trading cards, engaged with the Magic secondary market by surveying the stores to inquire on current prices to cards, which they then published
Link Arrows do two things, they enable effects for the Link Monster to activate or make it stronger, for example Decode Talker gains 500 ATK for each monster it points to and is able negate card effects that target cards you control by Tributing a monster it points to
A companion blog post on the official Pokmon website helps us nail down a few more key facts about the return of Mega Evolution cards
Used in: 5 episode instances for Japanese
Some other defender creatures can also serve as payoffs, like Coral Colony and Doorkeeper, which mill your opponent, or Blight Pile, which attacks their life points directly