It seems like every set adds to this in some way, even if its only with an exclusive rarity, but Japanese Showcase cards are a rarity that anyone can get, provided they pick up the right packs
4 High Sentinels of Arashin Birds Of A Feather Kill Together There was this brief era in Magic where white always seemed to have some of the best rares in any given set, and Khans is no exception
And as a bonus you're fetching some lands in the process
If the copied creature is copying something else, then the token enters as whatever that creature copied, with the listed exceptions
Font of Mythos Font of Mythos provides a plain, clean group hug effect where everybody can enjoy your generosity, hopefully earning you some political credit as the player that helps folks find the cards they love to play
Customization (Modern Market) While vintage value is about history, the modern market is driven by personalization