Goat format ruling
Creature Swap

Card effect (current official text)Each player chooses 1 monster they control and switches control of those monsters with each other. Those monsters cannot change their battle positions for the rest of this turn.
Rulings
- Creature Swap does not target. The monsters are chosen when its effect resolves, not when Creature Swap is activated.
- The opponent cannot chain Fairy’s Hand Mirror, Riryoku Field, or Shift to Creature Swap because it does not target. For the same reason, Lord of D. does not prevent Dragon monsters from being selected, and Freed the Matchless General will not negate the effect of Creature Swap.
- Both players must have at least 1 eligible monster on the field for Creature Swap to be activated. If the opponent chains a card (such as Ring of Destruction) to destroy the only monster on one side of the field, the effect of Creature Swap disappears.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Goat forum — sourced change requests get reviewed.