Text (UH): 2/3. ; When the names of three or more nonland permanents begin with the same letter, sacrifice ~this~. If you do, it deals 2 damage to each creature and each player.
Ignore articles (The, A, An) at the start of names when deciding what letter they start with. [Unhinged FAQ 2004/11/15]
All tournament formats have banned cards from Unhinged.