Seal from Existence — ruling 1

Seal from Existence’s last ability creates two one-shot effects: one that exiles the permanent when the ability resolves, and another that returns the exiled card to the battlefield immediately after Seal from Existence leaves the battlefield.

Seal from Existence — ruling 2

If Seal from Existence leaves the battlefield before its last ability resolves, the target permanent won’t be exiled.

Seal from Existence — ruling 3

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

Seal from Existence — ruling 4

If a token is exiled, it ceases to exist. It won’t be returned to the battlefield.

Seal from Existence — ruling 5

In a multiplayer game, if Seal from Existence’s owner leaves the game, the exiled card will return to the battlefield. Because the one-shot effect that returns the card isn’t an ability that goes on the stack, it won’t cease to exist along with the leaving player’s spells and abilities on the stack.

Seal from Existence : règles, fonctionnement et interactions (MTG)

Seal from Existence 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

Ward (Whenever this enchantment becomes the target of a spell or ability an opponent controls, counter it unless that player pays .) When this enchantment enters, exile target nonland permanent an opponent controls until this enchantment leaves the battlefield.

How it works : Seal from Existence

Original English text — Wizards of the Coast / Scryfall

#1April 14, 2023· Wizards of the Coast
Seal from Existence’s last ability creates two one-shot effects: one that exiles the permanent when the ability resolves, and another that returns the exiled card to the battlefield immediately after Seal from Existence leaves the battlefield.
No other card is named in this ruling.
#2April 14, 2023· Wizards of the Coast
If Seal from Existence leaves the battlefield before its last ability resolves, the target permanent won’t be exiled.
No other card is named in this ruling.
#3April 14, 2023· Wizards of the Coast
Auras attached to the exiled permanent will be put into their owners’ graveyards. Equipment attached to an exiled creature will become unattached and remain on the battlefield. Any counters on the exiled permanent will cease to exist.
No other card is named in this ruling.
#4April 14, 2023· Wizards of the Coast
If a token is exiled, it ceases to exist. It won’t be returned to the battlefield.
No other card is named in this ruling.
#5April 14, 2023· Wizards of the Coast
In a multiplayer game, if Seal from Existence’s owner leaves the game, the exiled card will return to the battlefield. Because the one-shot effect that returns the card isn’t an ability that goes on the stack, it won’t cease to exist along with the leaving player’s spells and abilities on the stack.
No other card is named in this ruling.