Just an idea I had about Dark harvest (removing duskblade)

First of all, remove duskblade and rework Dark harvest like this: Dark Harvest: Both enemy and allied, champions, large minions and large monsters within 1400 units drop Soul Essence on death, which you can collect for the next 10 seconds by moving nearby. If you kill the target yourself, the Soul Essence will be automatically picked up. Champions grant 6 Soul Essence; large minions grant 4 Soul Essence; and large monsters grant 2 Soul Essence. Select champion summoned units are classified as large minions.(Unchanged) Collecting Soul Essence empowers your next basic attack versus an enemy champion or structure~~ within the next 20 seconds~~ when becoming unseeen for 1 second to deal 40 - 80 (based on level) (+ Total Soul Essence) (+ 25% bonus AD) (+ 20% AP) bonus Attack damage/Ability power Adaptive damage. After getting 150 stacks,~~ you become Soul Charged, increasing the time to trigger the empowered attack to 300 seconds.~~ gain UNIQUE Passive– BLACKOUT: You disable surrounding wards, as well as Exposed 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. ADAPTIVE DAMAGE: Deals either physical or magic damage depending on your bonus statistics, defaulting to physical damage. So essentially the current duskblade gets into this rune and the actual item gets completely removed from the game. What do you guys think?That way it would be viable to any champion both ap and ad and not be only tied to lethality champs too. The numbers are debatable this is just the general idea.