With its thousands of cards, experimental mechanics, and player ingenuity, it is impossible for Wizards of the Coast's R&D team to account for the nearly-infinite possibilities for any card
Per MTGs description for the collection, Cast powerful spells, call upon classic summons, and even visit your favorite locations on the back of a chocobo
Seems like an interesting strategy to explore more thoroughly
The most important ability is it being able to sacrifice other creatures, put -1/-1 counters on creatures and draw cards
Entry is handled as an advance online lottery
Now, if you can just find a Dark Ritual and a Skirge Familiar, you can convert your life to cards and cards to mana efficiently