Shades

Scouts are set up after all other non-Scout units from both armies have been deployed. they can be set up either in their controlling player' deployment zone, or anywhere on the battlefield more than 12"away from the enemy. If deployed in this second way, Scouts cannot declare a charge in the first turn if their side goes first.

Re-roll Missed attacks during the first round of close combat against High Elves

Models with this special rule (but not their mounts) re-roll all To Wound rolls of a 1 when making close combat attacks.

Unit always strikes first
If the unit's Initiative is equal to or higher than the enemy's, he can re-roll failed misses when striking in close combat.