adventure mtg cards Best Extraordinary Journey and Adventure cards

It adds a point of burn to all your cards if you can keep extra mana free

You don't even need all the self mill effects but not having them greatly increases the importance of having cheap cards across most of the types that put them selves in the bin somehow

If we count each of these as half of a land (because they function as lands but need at least one land on the battlefield to start working

Keen-eyed racers may even spot Borderless Graffiti Giants, Special Guests, Japan Showcase cards, or the Headliner card: a Serialized Aetherspark that leaves other collections in the dust

Im not sure its quite worth 6 mana, but maybe