Pokémon ex rule: When your Pokémon ex is Knocked Out, your opponent takes 2 Prize cards.
Legendary Ascent
Once during your turn, when you put Articuno ex from your hand onto your Bench, you may switch 1 of your Active Pokémon with Articuno ex. If you do, you may also move any number of basic Energy cards attached to your Pokémon to Articuno ex.
Cold Crush
Damage: 50
You may discard an Energy card attached to Articuno ex. If you do, your opponent discards an Energy card attached to the Defending Pokémon.