Pokémon ex rule: When your Pokémon ex is Knocked Out, your opponent takes 2 Prize cards.
Darkness Veil
As long as Rocket's Articuno ex has any Energy attached to it, prevent all effects, except damage, by an opponent's attack done to Rocket's Articuno ex.
Freeze Solid
Damage: 10
Search your discard pile for a Energy card and attach it to Rocket's Articuno ex.