Official Riftbound ruling
What happens if you Brush a Brush? Can you swap back the original battlefield you Brushed?
The Brush token will cease to exist. When swapping back, a player can choose to swap back to any object that was replaced, including the original battlefield.
This is because a replacing game object inherits all of the statuses and conditions of the game object it replaced, per 438.1. A game object can be instructed to “swap back”; the token stops existing and the original card is returned to the space that the token occupied, inheriting all its current effects and statuses per rule 438.7.b. “All of the effects and statuses” includes not only temporary effects applied to the battlefield, but also the relationship between replaced and replacing battlefields.
Riot's question and answer, word for word, from theUnleashed Rules FAQ and ClarificationsCore Rules 438.1, 438.7.b (as numbered in April 2026)
The cards
BrushBattlefield
Bird, Cat, Dog, Poro, and Ivern units here have +1
Might.When you score here, you may replace this with the battlefield it replaced.
Ivern: Green FatherLegend
When you conquer or hold, you may exhaust me to replace that battlefield with a Brush battlefield token. (Bird, Cat, Dog, Poro, and Ivern units have +1
Might in Brush. It can be swapped back when scored.)