The mystery was how big the effect would be, not what would happen
The question attempts to figure out which of the two players in a game is supposed to be the aggressor due to how the match will play out
Unearth only as a sorcery.) P/T Number 83 Language English Legal Formats Brawl, Commander, Competitive Brawl, Historic, Legacy, Modern, Pioneer, Timeless, Vintage Not Legal Formats Alchemy, Pauper, Standard Rulings (10/14/2022) If you attack the same player with two Terisian Mindbreakers, that player will mill half their library as the first Mindbreaker's ability resolves
Thank goodness every card in Magic doesn't have to be written in this way
The card is especially valuable in Gardevoir, Mew, and Lost Zone decks