Unexpected Results — ruling 1

If you reveal a nonland card, you may cast it during the resolution of Unexpected Results. Ignore timing restrictions based on the card’s type. Other timing restrictions, such as “Cast [this card] only during combat,” must be followed.

Unexpected Results — ruling 2

If you can’t cast the card (perhaps because there are no legal targets), or if you choose not to, the card will remain on top of the library.

Unexpected Results — ruling 3

If you cast a spell “without paying its mana cost,” you can’t pay alternative costs such as overload costs. You can pay additional costs such as kicker costs. If the card has mandatory additional costs, you must pay those.

Unexpected Results — ruling 4

If the card has {X} in its mana cost, you must choose 0 as its value.

Unexpected Results — ruling 5

If you reveal a land card, Unexpected Results will be returned to your hand only if you put that land card onto the battlefield. If you don’t, Unexpected Results will be put into its owner’s graveyard.

Unexpected Results — ruling 6

If you reveal a land card and put that card onto the battlefield, Unexpected Results will be put into its owner’s hand directly from the stack. It won’t be put into any graveyard.

Unexpected Results : règles, fonctionnement et interactions (MTG)

Unexpected Results 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

Shuffle your library, then reveal the top card. If it's a nonland card, you may cast it without paying its mana cost. If it's a land card, you may put it onto the battlefield and return Unexpected Results to its owner's hand.

How it works : Unexpected Results

Original English text — Wizards of the Coast / Scryfall

#1January 24, 2013· Wizards of the Coast
If you reveal a nonland card, you may cast it during the resolution of Unexpected Results. Ignore timing restrictions based on the card’s type. Other timing restrictions, such as “Cast [this card] only during combat,” must be followed.
No other card is named in this ruling.
#2January 24, 2013· Wizards of the Coast
If you can’t cast the card (perhaps because there are no legal targets), or if you choose not to, the card will remain on top of the library.
No other card is named in this ruling.
#3January 24, 2013· Wizards of the Coast
If you cast a spell “without paying its mana cost,” you can’t pay alternative costs such as overload costs. You can pay additional costs such as kicker costs. If the card has mandatory additional costs, you must pay those.
No other card is named in this ruling.
#4January 24, 2013· Wizards of the Coast
If the card has in its mana cost, you must choose 0 as its value.
No other card is named in this ruling.
#5January 24, 2013· Wizards of the Coast
If you reveal a land card, Unexpected Results will be returned to your hand only if you put that land card onto the battlefield. If you don’t, Unexpected Results will be put into its owner’s graveyard.
No other card is named in this ruling.
#6January 24, 2013· Wizards of the Coast
If you reveal a land card and put that card onto the battlefield, Unexpected Results will be put into its owner’s hand directly from the stack. It won’t be put into any graveyard.
No other card is named in this ruling.