Sphinx of Clear Skies

• WOTC Official Reminder Textofficial rules
  Ward — Whenever this permanent becomes the target of a spell or ability an opponent controls, counter it unless that player pays [cost].

• WWizards of the Coast2022-09-09
  Official Ruling
  That opponent may choose to put all of the cards into one pile and leave the other pile empty. In that case, the ability’s controller chooses whether to put the revealed cards into their hand or into their graveyard.
• WWizards of the Coast2022-09-09
  Official Ruling
  The player who controls the triggered ability chooses which opponent separates the cards into two piles. This choice is made after revealing those cards.
• WWizards of the Coast2022-09-09
  Official Ruling
  The basic land types are Plains, Island, Swamp, Mountain, and Forest. Land types other than basic land types (such as Desert) don’t contribute to domain abilities.
• WWizards of the Coast2022-09-09
  Official Ruling
  Domain abilities count the number of basic land types among lands you control, not how many lands you control or how many of any type.

Rulings via Scryfall