Reality Scramble — ruling 1

The target permanent’s last known existence on the battlefield is checked to determine its types.

Reality Scramble — ruling 2

Reality Scramble can target any permanent you own, including those another player controls. A token’s owner is the player who created it.

Reality Scramble — ruling 3

You’ll stop as soon as you reveal a card that shares any card types with the target permanent. For example, if the target permanent is an artifact creature, you’ll stop as soon as you reveal a card that’s an artifact or a creature.

Reality Scramble — ruling 4

In most cases, at least one card in your library (the card you put on the bottom of your library) will share a card type with the target permanent. However, in some unusual situations, no cards in your library share a card type with the permanent (perhaps because the permanent was a token or its types were changed). In that case, you’ll reveal your entire library, put nothing onto the battlefield, and put the cards back in a random order.

Reality Scramble — ruling 5

Casting a card by using its retrace ability works just like casting any other spell, with two exceptions: You’re casting it from your graveyard rather than your hand, and you must discard a land card in addition to any other costs.

Reality Scramble — ruling 6

Casting a card with retrace from your graveyard follows the normal timing rules for its card type.

Reality Scramble — ruling 7

When a retrace card you cast from your graveyard resolves or is countered, it’s put back into your graveyard. You may use the retrace ability to cast it again. If it’s your turn, you may do so before any other player may take actions to try to remove it from your graveyard.

Reality Scramble : règles, fonctionnement et interactions (MTG)

Reality Scramble is one of those cards players keep asking about. Here is, in plain words, what its official text says, the rulings published by Wizards of the Coast, and the combos players actually run.

Official card text

Put target permanent you own on the bottom of your library. Reveal cards from the top of your library until you reveal a card that shares a card type with that permanent. Put that card onto the battlefield and the rest on the bottom of your library in a random order. Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.)

How it works : Reality Scramble

Original English text — Wizards of the Coast / Scryfall

#1July 13, 2018· Wizards of the Coast
The target permanent’s last known existence on the battlefield is checked to determine its types.
No other card is named in this ruling.
#2July 13, 2018· Wizards of the Coast
Reality Scramble can target any permanent you own, including those another player controls. A token’s owner is the player who created it.
No other card is named in this ruling.
#3July 13, 2018· Wizards of the Coast
You’ll stop as soon as you reveal a card that shares any card types with the target permanent. For example, if the target permanent is an artifact creature, you’ll stop as soon as you reveal a card that’s an artifact or a creature.
No other card is named in this ruling.
#4July 13, 2018· Wizards of the Coast
In most cases, at least one card in your library (the card you put on the bottom of your library) will share a card type with the target permanent. However, in some unusual situations, no cards in your library share a card type with the permanent (perhaps because the permanent was a token or its types were changed). In that case, you’ll reveal your entire library, put nothing onto the battlefield, and put the cards back in a random order.
No other card is named in this ruling.
#5July 13, 2018· Wizards of the Coast
Casting a card by using its retrace ability works just like casting any other spell, with two exceptions: You’re casting it from your graveyard rather than your hand, and you must discard a land card in addition to any other costs.
No other card is named in this ruling.
#6July 13, 2018· Wizards of the Coast
Casting a card with retrace from your graveyard follows the normal timing rules for its card type.
No other card is named in this ruling.
#7July 13, 2018· Wizards of the Coast
When a retrace card you cast from your graveyard resolves or is countered, it’s put back into your graveyard. You may use the retrace ability to cast it again. If it’s your turn, you may do so before any other player may take actions to try to remove it from your graveyard.
No other card is named in this ruling.