The target makes an Athletics check to jump with a +10 power bonus, and the target does not have to move to make a running jump."[PH:161][U:8/2008][Dr401:56]
Jump is an encounter power available to wizards at 2nd level.
The August 2008 update revised jump to clarify its effects. The "Class Compendium: The Arcanist" article in Dragon 401 republished jump with no further changes.