Press the Enemy — ruling 1

If a spell is returned to its owner's hand, it's removed from the stack and thus will not resolve. The spell isn't countered; it just no longer exists. This works against a spell that can't be countered.

Press the Enemy — ruling 2

If a spell with {X} in its mana cost is returned to a player's hand this way, {X} is the value chosen as the spell was cast for the purpose of evaluating the spell's mana value.

Press the Enemy — ruling 3

If a permanent with {X} in its mana cost is returned to a player's hand this way, {X} is 0 for the purpose of evaluating its mana value.

Press the Enemy — ruling 4

If you cast a spell "without paying its mana cost," you can't pay any alternative costs. You can, however, pay additional costs, such as kicker costs. If the card has any mandatory additional costs, you must pay those.

Press the Enemy — ruling 5

If the spell you cast has {X} in its mana cost, you must choose 0 as the value of X.

Press the Enemy : règles, fonctionnement et interactions (MTG)

Press the Enemy 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

Return target spell or nonland permanent an opponent controls to its owner's hand. You may cast an instant or sorcery spell with equal or lesser mana value from your hand without paying its mana cost.

How it works : Press the Enemy

Original English text — Wizards of the Coast / Scryfall

#1June 16, 2023· Wizards of the Coast
If a spell is returned to its owner's hand, it's removed from the stack and thus will not resolve. The spell isn't countered; it just no longer exists. This works against a spell that can't be countered.
No other card is named in this ruling.
#2June 16, 2023· Wizards of the Coast
If a spell with in its mana cost is returned to a player's hand this way, is the value chosen as the spell was cast for the purpose of evaluating the spell's mana value.
No other card is named in this ruling.
#3June 16, 2023· Wizards of the Coast
If a permanent with in its mana cost is returned to a player's hand this way, is 0 for the purpose of evaluating its mana value.
No other card is named in this ruling.
#4June 16, 2023· Wizards of the Coast
If you cast a spell "without paying its mana cost," you can't pay any alternative costs. You can, however, pay additional costs, such as kicker costs. If the card has any mandatory additional costs, you must pay those.
No other card is named in this ruling.
#5June 16, 2023· Wizards of the Coast
If the spell you cast has in its mana cost, you must choose 0 as the value of X.
No other card is named in this ruling.