 The Elves' powers are described in terms of the Elves' awareness of and influence over the patterns of reality, much in the same vein as the Moirai of Greek myth.They can discern the patterns of cause and effect in a very real and palpable manner, and they can selectively re-weave the patterns to suit their desires, though it greatly drains them if the manipulation is in-depth or far-sweeping; they are also aware of the principle of unintended consequences, where a little meddling in the present can yield large and potentially disastrous results later.In practice, the Elves can change reality in nearly any way, the extent and means being limited only by their conscience, force of will, and energy given to the task.