Marksman's Vision
Swordmage Attack 19
With one swipe, you mark your opponent with a burning, magic sigil that distracts your foe and ensures that the creature can't hide.
Melee weapon
Effect: Until the end of the encounter, you can see the target of this power even if it is invisible or hidden. You take no penalty to attack rolls against the target for any concealment, total concealment, cover, or superior cover it has, but you cannot see through walls or any other solid barriers. In addition, you gain the benefit of flanking against the target as long as you and at least one ally are adjacent to it.
Target: One creature
Attack: Intelligence vs. AC
Hit: 3[W] + Intelligence modifier damage
Marksman's Vision is a daily power available to swordmages at the 19th level.[AP:60]