Deputy of Detention — ruling 1

Unless a token is a copy of another permanent or was explicitly given a name by the effect that created it, its name is the subtypes it was given when it was created plus the word "Token." For example, if an effect creates a 1/1 Soldier creature token, that token is named "Soldier Token."

Deputy of Detention — ruling 2

If the target nonland permanent is an illegal target by the time this ability tries to resolve, the ability doesn't resolve. Nothing is exiled.

Deputy of Detention — ruling 3

If Deputy of Detention leaves the battlefield before its triggered ability resolves, nothing is exiled.

Deputy of Detention — ruling 4

This ability has only one target. The other permanents with that name aren't targeted. For example, a permanent with hexproof will be exiled if it has the same name as the target nonland permanent.

Deputy of Detention — ruling 5

If a token is exiled this way, it will cease to exist and won't return to the battlefield.

Deputy of Detention — ruling 6

A face-down creature has no name, so it can't share a name with anything. This includes other creatures with no name.

Deputy of Detention — ruling 7

Auras attached to the exiled permanents will be put into their owners' graveyards. Any Equipment will become unattached and remain on the battlefield. Any counters on the exiled permanents will cease to exist.

Deputy of Detention : règles, fonctionnement et interactions (MTG)

Deputy of Detention is one of those cards players keep asking about. Here is, in plain words, what its official text says, the rulings published by Wizards of the Coast, and the combos players actually run.

Official card text

When this creature enters, exile target nonland permanent an opponent controls and all other nonland permanents that player controls with the same name as that permanent until this creature leaves the battlefield.

How it works : Deputy of Detention

Original English text — Wizards of the Coast / Scryfall

#1June 10, 2022· Wizards of the Coast
Unless a token is a copy of another permanent or was explicitly given a name by the effect that created it, its name is the subtypes it was given when it was created plus the word "Token." For example, if an effect creates a 1/1 Soldier creature token, that token is named "Soldier Token."
No other card is named in this ruling.
#2January 25, 2019· Wizards of the Coast
If the target nonland permanent is an illegal target by the time this ability tries to resolve, the ability doesn't resolve. Nothing is exiled.
No other card is named in this ruling.
#3January 25, 2019· Wizards of the Coast
If Deputy of Detention leaves the battlefield before its triggered ability resolves, nothing is exiled.
No other card is named in this ruling.
#4January 25, 2019· Wizards of the Coast
This ability has only one target. The other permanents with that name aren't targeted. For example, a permanent with hexproof will be exiled if it has the same name as the target nonland permanent.
No other card is named in this ruling.
#5January 25, 2019· Wizards of the Coast
If a token is exiled this way, it will cease to exist and won't return to the battlefield.
No other card is named in this ruling.
#6January 25, 2019· Wizards of the Coast
A face-down creature has no name, so it can't share a name with anything. This includes other creatures with no name.
No other card is named in this ruling.
#7January 25, 2019· Wizards of the Coast
Auras attached to the exiled permanents will be put into their owners' graveyards. Any Equipment will become unattached and remain on the battlefield. Any counters on the exiled permanents will cease to exist.
No other card is named in this ruling.