Text (ON+errata): 1/1. ; {Tap}: Prevent the next X damage that would be dealt to target creature this turn, where X is the number of Clerics on the battlefield. [Oracle 2009/07/08]
The value of X is determined when this resolves, not later when damage would be dealt. [Onslaught FAQ 2002/09/24]
Note - This card was creature type "Cleric" until Oracle 2007/10/01, when it became "Human Cleric".
