The Fact Checker
Legendary Creature — Human Wizard, {1}{W}{U}
Oracle Text
If you would guess a card, instead just choose the outcome you want.
At the beginning of each opponent's upkeep, look at the top card of their library. Tell them the name of that card. They tell you its mana cost, type line, power, and toughness. Then reveal that card. If they got anything wrong, draw a card.