Cards that are in the exile zone as the result of a haunt ability “haunt” the creature targeted by that ability. The phrase “creature it haunts” refers to the object targeted by the haunt ability, regardless of whether or not that object is still a creature.
July 13, 2013 · Magic 2014
If a spell has multiple instances of replicate, each is paid separately and triggers based on the payments made for it, not any other instance of replicate.
September 30, 2011 · Innistrad
A forecast ability may be activated only during the upkeep step of the card's owner and only once each turn. The controller of the forecast ability reveals the card with that ability from his or her hand as the ability is activated. That player plays with that card revealed in his or her hand until it leaves the player's hand or until a step or phase that isn't an upkeep step begins, whichever comes first.
June 17, 2011 · Commander 2011
A forecast ability may be activated only during the upkeep step of the card’s owner and
February 1, 2010 · Worldwake
If a creature has multiple instances of graft, each one works separately.