You don’t have to control either target permanent.
2019-05-03
wotc
The permanent types are artifact, creature, enchantment, land, and planeswalker. Supertypes, like legendary, aren’t permanent types. For example, you can’t exchange control of a legendary creature with a legendary planeswalker.
2019-05-03
wotc
Role Reversal’s effect lasts indefinitely. It doesn’t wear off during the cleanup step, and it doesn’t expire if the permanents stop sharing a permanent type after Role Reversal has resolved.
2019-05-03
wotc
If the same player controls both permanents when Role Reversal resolves, nothing happens.
2019-05-03
wotc
If one of the target permanents is an illegal target when Role Reversal resolves, the exchange won’t happen.
2019-05-03
wotc
Gaining control of a permanent doesn’t cause you to gain control of any Auras or Equipment attached to it.
Format Legality
Standard
Not Legal
Future
Not Legal
Historic
Legal
Timeless
Legal
Gladiator
Legal
Pioneer
Legal
Modern
Legal
Legacy
Legal
Pauper
Not Legal
Vintage
Legal
Penny
Legal
Commander
Legal
Oathbreaker
Legal
Standardbrawl
Not Legal
Brawl
Legal
Alchemy
Not Legal
Paupercommander
Not Legal
Duel
Legal
Oldschool
Not Legal
Premodern
Not Legal
Predh
Not Legal
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