Goat format ruling
Remove Brainwashing

Card effect (current official text)The control of all monsters on the field returns to the owners.
Rulings
- If Monster Reborn is activated and Remove Brainwashing is chained (or was already applying on the field), the monster goes to the side of the field of the player who activated Monster Reborn, then switches back to the original owner immediately afterwards.
- Remove Brainwashing has no effect on a Monster Card equipped to Relinquished or Thousand-Eyes Restrict, and the Monster Card remains where it is, because it is an Equip Spell Card.
- If Remove Brainwashing is destroyed, control does not revert again, so if I activate Change of Heart and my opponent chains Remove Brainwashing, control of the monster comes to me and then reverts to my opponent. Then, later in the turn, if Remove Brainwashing is destroyed with Heavy Storm, control does not revert back to me and remains with the original owner. (The same for Creature Swap, etc.)
- Control of Blindly Loyal Goblin cannot change even because of Remove Brainwashing, so if Blindly Loyal Goblin is Summoned due to Monster Reborn or using Exchange, the original owner will not control Blindly Loyal Goblin.
- Q: Player 1 has all 5 Monster Zones filled and Player 2 activates "Monster Reborn" on a Monster in Player 1s GY. What happens to the selected Monster if "Remove Brainwashing" is either already applying or activated after "Monster Reborn" is resolved? Since the Monster can't fit back on its owners Field would it be destroyed, would nothing happen until there is an open slot or something completely different? A: The monster would be destroyed.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Goat forum — sourced change requests get reviewed.