Chaos Warp

Instant    (CMC:3)

The owner of target permanent shuffles it into his or her library, then reveals the top card of his or her library. If it's a permanent card, he or she puts it onto the battlefield.

055 PZ1 • ENTrevor Claxton

™ & © 1993— Wizards of the Coast

Notes: TODO: Check rarity

Legal in: Legacy,Vintage,Commander

Oracle Text (click to copy):

9/22/2011
The owner of a token is the player under whose control the token was put onto the battlefield. If a token is shuffled into a player's library this way, that player shuffles before revealing the top card of that library.
9/22/2011
If the permanent is an illegal target by the time Chaos Warp tries to resolve, it will be countered and none of its effects will occur. No library will be shuffled and no card will be revealed.
9/22/2011
A permanent card is a card with one or more of the following card types: artifact, creature, enchantment, land, or planeswalker.
9/22/2011
If the revealed card is a permanent card but can't enter the battlefield (perhaps because it's an Aura with nothing to enchant), it remains on top of that library.
9/22/2011
If the revealed card is not a permanent card, it remains on top of that library.