When Restoration Angel enters the battlefield, you may exile target non-Angel creature you control, then return that card to the battlefield under your control.
11/17/2017 Once the exiled creature returns, it’s considered a new object with no relation to the object that it was. Auras attached to the exiled creature will be put into their owners’ graveyards. Equipment attached to the exiled creature will become unattached and remain on the battlefield. Any counters on the exiled creature will cease to exist.
11/17/2017 The returned creature won’t be the target of any spells or abilities that targeted it before. Any spells that don’t target it, such as Austere Command, will still affect it.
11/17/2017 If you target a creature that you control but don’t own, you control the returned creature indefinitely after it returns. When you leave a multiplayer game, exile any objects that you put onto the battlefield under your control but don’t own.
11/17/2017 If a token is exiled this way, it will cease to exist and won’t return to the battlefield.