Fires of Invention

Fires of Invention Rulings

• Oct 4, 2019

  Fires of Invention doesn't impose any restrictions on playing lands or activating abilities.

• Oct 4, 2019

  Fires of Invention will look at the entire turn to see if you've cast two spells yet that turn, even if Fires of Invention wasn't on the battlefield when those spells were cast. Notably, you can't cast Fires of Invention and then cast two more spells that turn; if Fires of Invention was your second (or third, or fourth) spell that turn, you can't cast another spell at all.

• Oct 4, 2019

  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.

• Oct 4, 2019

  If an effect allows or instructs you to cast a spell during another player's turn, you can't do so. The restriction of Fires of Invention takes precedence over that permission. Similarly, if an effect allows or instructs you to cast a third spell during your turn, you can't do so.

• Oct 4, 2019

  If an effect says that you may cast a card that you couldn't otherwise cast if you pay an alternative cost (such as the flashback keyword), you have to pay that alternative cost if you use that permission to cast the card. You can't choose to cast it but cast it without paying its mana cost.