Is Duskblade overloaded?

Duskblade of Draktharr Stats +55 attack damage +10% cooldown reduction Passive UNIQUE: +21 Lethality (13.07 − 21 (based on level) armor penetration) UNIQUE – NIGHTSTALKER: After being unseen for at least 1 second, your next basic attack against an enemy champion deals 30 − 150 (based on level) bonus on-hit physical damage and Slow icon slows by 99% for 0.25 seconds. The enhanced attack lasts 5 seconds after being seen by an enemy champion. UNIQUE: When spotted by an enemy ward or traps, gain Blackout over a 400-unit radius for 8 seconds (90 second cooldown). UNIQUE – BLACKOUT: You disable surrounding wards, as well as exposing stealthed wards and traps. The effects linger for 2 seconds after you walk away. Melee basic attacks instantly kill wards or traps revealed by Blackout. Blackout does not extend over terrain.

Doesn't this seem a little too all around?

It's supportive utility, armor pen, 55 AD, 10% CDR and bonus damage on-hit.

Only costs 2900 gold, though it seems like it could be a centerpiece to builds like how Trinity Force is.