The Fold Space power has a 100 foot range ... but it will activate regardless of the range to the target, triggering a cooldown before the power can be activated again. If the target is outside of the 100 foot range, the power won't do anything (no to-hit rolls logged in the combat log), but there's no Out of Range message or any other indication ... it seems like the power just missed. Since it's very difficult to tell exactly what the range is to a target, it's very difficult to effectively use the power.
