In my campaign, I am playing a Hybrid Swordmage who is using the Vigilante Character Theme to allow him to apply marks with the Mark of the Vigilante power. This power reads:
Effect: You assume a stance, the mark of the vigilante. Until the stance ends, you gain the following benefits.
Whenever you hit an enemy with a melee or ranged attack, you can mark the enemy until the end of your next turn.
You gain a +2 power bonus to all defenses against opportunity attacks that you provoke by moving."
My question is about the marking. If the target is marked by the mark of the Vigilante power, can I use my Swordmage Aegis of Assault power? The power reads:
Effect: You mark the target. The target remains marked until you use this power against another target. If you mark other creatures using other powers, the target is still marked. A creature can be subject to only one mark at a time. A new mark supersedes a mark that was already in place.
If your marked target makes an attack that doesn't include you as a target, it takes a –2 penalty to attack rolls. If that attack hits and the marked target is within 10 squares of you, you can use an immediate reaction to teleport to a square adjacent to the target and make a melee basic attack against it. If no unoccupied space exists adjacent to the target, you can't use this immediate reaction.
Note that it refers to the target as a "marked target". Does the effect apply if the target is marked by another power?