Ancient Technical Machine [Ice] (Japanese: 超古代のワザマシン氷Very Ancient Technique Machine of Ice) is a Technical Machine card. It is part of the EX Hidden Legends expansion.
Card text
Attach this card to 1 of your Evolved Pokémon (excluding Pokémon-ex and Pokémon that has an owner in its name) in play. That Pokémon may use this card's attack instead of its own. At the end of your turn, discard Ancient Technical Machine [Ice].
Ice Generator アイスジェネレート
Discard all of your opponent's Trainer cards in play. If you do, prevent all effects, including damage, done to the Pokémon using this attack during your opponent's next turn.
Trivia
This card later received an erratum to clarify that only effects from attacks are prevented, not all effects in play. The effects of Trainer cards, Poké-Powers, and Poké-Bodies are not prevented.