Instant, B (1) Open a sealed Magic booster pack, reveal the cards, and put one of those cards into your hand. (Remove that card from your deck before beginning a new game.)1 Real men use Arabian Nights boosters.
Illus. Christopher Rush
Any physical (not online) booster pack is legal, even if cards from that expansion are not normally legal in the game you're playing. [Unhinged FAQ 2004/11/15]
If Time Machine is used to hold the card, it is not removed from your deck at the end of the game, but instead follows Time Machine's rules. [Unhinged FAQ 2004/11/15]
All tournament formats have banned cards from Unhinged.