In the case of any of the five lands in this release, you'll be able to play it only during your main phase while the stack is empty and only if you have an available land play remaining
For example, it works quite well in some creature matchups thanks to Conflagrate, Darkblast, sideboard creature removal, and spam of blockers
If any player has 11 or more life as your upkeep begins, Cryptolith Fragments last ability doesnt trigger
Lets go through some of the sites features individually, with a focus on the sidebar
That's right, we're going to take a little trip to the mid-90's and talk about some book promos
Then, the next player makes their choice, that effect happens, and so on for each player faced with a villainous choice. You may be thinking: Wait, that's not how it works