Transform Arlinn, Embraced by the Moon -6 You get an emblem with "Creatures you control have haste and (tap), This creature deals damage equal to its power to target creature of player.'" ChannelFireball preview
Another joke people sometimes miss is in the flavor text, which looks like a dictionary definition
Mana Vault Mana Vault is too much an OG to be listed with the faux-Moxes and faux-Lotuses above
Plains Steppe Tundra, Russia The most expensive Euro land is, you guessed it, the red boosters Island, clocking in $80
One of them has a 1/8 chance of being a Special Guest (some expansions have a card of any rarity from a special set of reprints)
As a Reserved List staple, it's a cornerstone in high-powered formats like Commander (EDH) and Vintage