Historical Rules · 18 June 2021
Rule 502.1
Official source text from the 18 June 2021 Rules release
First, all phased-in permanents with phasing that the active player controls phase out, and all phased-out permanents that the active player controlled when they phased out phase in. This all happens simultaneously. This turn-based action doesn’t use the stack. See rule 702.26, “Phasing.”