Looking at the features, we have:

(Perpetual) Darkvision to 1 square
(Encounter) +1 to speed or +2 to charge/run speed as a minor action until the end of your next turn
(Daily) +1 to your reach for one attack you make

The daily power maybe you could work an alternative to.

The encounter power is weird, as +1 to speed is a really weak power as far as the 4e spectrum goes. Really, really weak. I don't know how you'd play around with that one to come up with a different effect.

The perpetual power is also difficult to mess around with because 1 square of Darkvision is so insanely minuscule.