Archetype of Endurance — ruling 1

The Archetype’s second ability applies to each creature controlled by any of your opponents, no matter when it entered the battlefield.

Archetype of Endurance — ruling 2

While you control an Archetype, continuous effects generated by the resolution of spells and abilities that would give the specified ability to creatures your opponents control aren’t created. For example, if you control Archetype of Courage, a spell cast by an opponent that gives creatures they control first strike wouldn’t cause the creatures to have first strike, even if later in the turn Archetype of Courage left the battlefield. (If the spell has additional effects, such as raising the power of the creatures, those effects will apply as normal.)

Archetype of Endurance — ruling 3

Conversely, continuous effects generated by static abilities (such as an Aura that granted the appropriate ability) would resume applying if the Archetype left the battlefield.

Archetype of Endurance — ruling 4

If you and an opponent each control the same Archetype, no creature controlled by any player will have the appropriate ability.

Archetype of Endurance : règles, fonctionnement et interactions (MTG)

Archetype of Endurance 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

Creatures you control have hexproof. Creatures your opponents control lose hexproof and can't have or gain hexproof.

How it works : Archetype of Endurance

Original English text — Wizards of the Coast / Scryfall

#1February 1, 2014· Wizards of the Coast
The Archetype’s second ability applies to each creature controlled by any of your opponents, no matter when it entered the battlefield.
No other card is named in this ruling.
#2February 1, 2014· Wizards of the Coast
While you control an Archetype, continuous effects generated by the resolution of spells and abilities that would give the specified ability to creatures your opponents control aren’t created. For example, if you control Archetype of Courage, a spell cast by an opponent that gives creatures they control first strike wouldn’t cause the creatures to have first strike, even if later in the turn Archetype of Courage left the battlefield. (If the spell has additional effects, such as raising the power of the creatures, those effects will apply as normal.)
No other card is named in this ruling.
#3February 1, 2014· Wizards of the Coast
Conversely, continuous effects generated by static abilities (such as an Aura that granted the appropriate ability) would resume applying if the Archetype left the battlefield.
No other card is named in this ruling.
#4February 1, 2014· Wizards of the Coast
If you and an opponent each control the same Archetype, no creature controlled by any player will have the appropriate ability.
No other card is named in this ruling.