If a spell has {X} in its mana cost, you must choose 0 as the value of X when casting it without paying its mana cost.
05-10-2018
wotc
If you cast a spell “without paying its mana cost,” you can’t choose to cast it for any alternative costs. You can, however, pay additional costs, such as kicker costs. If the card has any mandatory additional costs, such as that of Severed Strands, those must be paid to cast the card.
05-10-2018
wotc
You may cast a sorcery this way even if it’s not your turn.
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.
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: You may cast an instant or sorcery spell from your hand without paying its mana cost.
Jason Rainville2018-10-05
