[Fallen Guardian]

I said something similar to this over on DeadlyStream but since I didn't post a function along with it I'll repeat myself here.

You can call this effect to make a movement speed increase

effect EffectMovementSpeedIncrease(int nNewSpeedPercent);

I used the other effect of this nature, EffectMovementSpeedDecrease, and it worked so this should too, theoretically.