When you set this scheme in motion, each opponent exiles the top card of their library. You may cast any number of spells from among cards exiled this way without paying their mana costs.
"Don't fret, infants. It wouldn't have worked anyway."
If the card has {X} in its mana cost, you must choose 0 as the value of X when casting it without paying its mana cost.
13-06-2017
wotc
If you cast a card "without paying its mana cost," you can't choose to cast it for any alternative costs, such as emerge costs. You can, however, pay additional costs. If the card has any mandatory additional costs, such as that of Tormenting Voice, you must pay those to cast the card.
13-06-2017
wotc
Now you have learned.
13-06-2017
wotc
You must cast any of the exiled cards you wish to cast for free while this scheme's ability is resolving. You can't wait until later in the turn. Any cards not cast this way remain exiled for the rest of the game. The spells will be added to the stack in the order that you cast them.
13-06-2017
wotc
If the owner of one of the exiled cards leaves the game, that card leaves the game as well.
Random a card of Magic: The Gathering (MTG), but you can also roll the D20 dice, random a Planeswalker, have fun with the random rules and more.