FYI: "Tournament-legal cards have a width x height measurement of 2.5x3.5, or 63.588.9mm. When it comes to the thickness, non-foil cards are about 0.012, or 0.305mm, thick. Foil cards, on their end, are a bit thicker as they have an extra layer on top of the card that creates that shiny, holographic look. When it comes to the corners of Magic cards, theyre rounded at a radius of about 0.125, or 3mm."
Unless you have a special exemption like Murktide Regent or Cavern of Souls, the only thing that matters against Prismatic Ending and Counterspell is whether youre OK trading for them
Im sure theyll love that
You can explore all the cards in this release with the Foundations Card Image Gallery
Based on what little I know about Doctor Who, this is also one of the most flavorful pairings in the command zone
If its close, keep in mind that the more pressure you have, the more it makes sense to cut off their mana