Howling Banshees

Models wearing a Banshee Mask always strikes first in hand-to-hand combat in the first round of any assault, regardless of Initiative or other factors. This applies even if they are not in base contact with the enemy. The mask has no effect in additional rounds of combat. In the case of other effects that would allow their enemy to also strike first, both units strike simultaneously.

Eldar units with this rule may run instead of shooting in the shooting phase. Roll a D6. The score is the distance in inches the unit may move in the shooting phase. This move is not affected by difficult terrain.
The Avatar; vehicles; jetbikes; any model with a saving throw better than 4+ (with the exception of Dire Avengers, Howling Banshees; Fire Dragon Exarchs and Phoenix Lords); units contain anti-grav/support weapons; and Dark Reapers may never run.