Grave Spike
Assassin Attack 1
As you strike your foe, your weapon shoots hundreds of tiny shadow spikes into it, wracking it with pain.
Melee weapon
Target: One creature
Attack: Dexterity vs. AC
Hit: 2[W] + Dexterity modifier damage, and ongoing 5 damage (save ends). Whenever the target takes this ongoing damage, the target falls prone.
Miss: Half damage.
Effect: Until the end of the encounter, you gain a +2 power bonus to attack rolls against the target while your shrouds are on it.
Grave Spike is a Daily power available to Assassins at level 1.[Dr379:20]