While the colors of Magic are vast and the borders between them shift constantly, there are a few key aspects you can expect to find in each, both in flavor and in function
The answer is everywhere
These Max and Powerline cards can also be found in booster packs as a new version, Epic
Factor in the number of dual lands you could potentially fetch and if it's mainly basic lands, you could likely pull back a fetch or two
Its a small edge, but given how rarely Void Shatter or Scatter to the Winds matters, Im gonna lean towards using Broken Concentration as my Cancel of choice, at least initially
Even so, you can be sure that loads of collectors have at the back of their binders a complete set of art cards, as well as other out-of-game extra cards like tokens, checklists, and punchcards