Text (JU+errata): 2/2, Haste. ; As long as ~this~ is in your graveyard and you control a Mountain, creatures you control have haste. [Oracle 2003/07/01]
The "in your graveyard" ability timestamped at the time that this card goes to your graveyard, regardless of whether you control a Mountain at that time. [Judgment FAQ 2002/05/28]