mtg double faced card rules Spider-Man Change Unlocks New Avenues For MDFC Cards Double sided card help :

Well explore these essential additions to maximize your decks potential

But for those cards with fewer rules to list or explain, there is an artistic addition: flavor text

Uthros Research Craft Uthros Research Craft and Uthros, Titanic Godcore have artifact synergies up the wazoo

With this in mind, it remains to be seen whether or not this interaction will be patched in the future

The Mox gems, one of each color, granted one mana when tapped, and cost nothing to play, meaning you could have double mana for nothing turn one, and because the original rules didnt prohibit the amount of any one card you have in your deck, early strategies were kind of ridiculous and spam-heavy