Assassin rework item ideas

AD Assassins don't have any core items (created for them) outside of the crappy Duskblade and the reworked Youmuu. Also AP Assassins don't have literally any item created for them, relying on AP items balanced around mages to be effective.

-New item Ideas-

"Bonus AD Sheen" +75 AD +250 Mana +10% Cooldown Reduction Unique Passive: Spellblade: Using an ability empowers the next basic attack within 3 seconds, that deals 75% Base AD (+50% Bonus AD) bonus physical damage. Context: It has mana because it would build out of sheen. Well, this item would be great for champions such as Talon or Zed, and RIOT would be able to balance them around this.

(Reworked) Deathfire Grasp +120 AP +20 Magic Penetration Unique Active: Deathflame: Shoots a flame of darkness at the target enemy champion, dealing 50-250 (based on level) (+30% AP), increased by 1% for each 1% of the target's missing health. Context: It was really a shame that Riot removed Deathfire Grasp instead of reworking it. I'm returning it as a "execute item" for AP assassin to bring down that low health enemy. If Riot wanted it to become a "tank burster" as originally intended. they could use this active instead: Unique Active: Deathflame: Shoots a flame of darkness at the target enemy champion, dealing 15% of the enemy's maximum health and aplying Death Curse for 5 seconds. Unique Passive: Death Curse: Your abilities against the marked enemy champion deal 25% of their bonus health as bonus magic damage.

-Item Changes-

Duskblade of Draktharr Attack Damage increased to 80 from 75 REMOVED: 5% Movement speed NEW: 10% Cooldown Reduction Unique passive: Physical Penetration increased to 20 from 10

Youmuu's Ghostblade Attack Damage increased to 70 from 60 Unique passive: REMOVED: 20 Physical Penetration NEW: 10% Movement speed Unique active: Movement speed increased to 25% from 20% REMOVED: 40% Attack Speed buff Context: In my opinion, Duskblade of Drakthar is underused and overshadowed by Youmuu's as a core item multiplier for assassins, and thus, I'm moving Youmuu more towards a mobility niche than a first item lane wrecker. With this stats, Duskblade shoud have its cost increased to 3550.

Please share your thoughts on this changes and the new items, but don't be rude ^^ If you think anything is overpowered or underpowered tell me and I will change them. Also If I have any other ideas for new items I'll post them.