Check out the new Expeditions lands!

We apologize for the late comic. Kenny has been dealing with some very heavy events in his life.
PS: Yes, I know how it’s really ‘colorless’ (and not ‘generic’). But, colored mana can be used to pay for generic costs as well. So, now Colorless mana acts exactly like colored mana for all intents and purposes. Like colored mana, it works to pay costs associated with its specific properties, and -also like colored mana- can be used to pay generic costs. So, the only real difference between the two now is for EDH. The ‘Sixth Color’ is playable in all Commander decks.
You might be tempted to call it the Seventh color (because of Snow mana), but -remember- Colorless came before Snow.