What makes a champion an AD caster?
Many people have varying definitions of what makes one, but "the characteristic" they must possess in order to truly be one, is the fact that they rely on their abilities more for damage, rather than their auto attacks.
Overview & Reasoning
(Note, this is a long reasoning, if you just want to see the suggestion, scroll down)
League of Legends has several Champions that have the unique role of being an AD Caster; Pantheon, Talon, Riven, Kha'Zix and Zed are all AD casters. What do they all have in common? High burst, fairly low defensive properties, and bonus damage scaling. One may classify them as "AD Caster Assassins".
However, Riot doesn't have much items to compliment these Champions, and people have been always asking for an AD Caster oriented item, ever since Lord Van Damm's Pillager came out.
Due to conflicting issues with the reworked Black Cleaver and the Van Damm Pillager, they temporarily disabled the Pillager for future rework, which has yet to be reworked for months now.
The original intention for Lord Van Damm's Pillager, was to increase the power of the "AD Caster Assassins", like Talon, but they soon realized it was more beneficial to bruisers. If they had kept the item intact with the now reworked Black Cleaver, the current meta would shift back into the "Bruiser-era"
I have a suggestion for the possible rework of Lord Van Damm's Pillager.
Lord Van Damm's Pillager
I kept the original properties which made the item popular, and ditched the health and armor penetration. I ditched the health because I really just wanted to focus on the AD caster assassins, and I ditched the armor penetration because I found that stacking penetration items can be very overpowered.
I wanted to keep in mind the focus group I was intending this item to be for, by recognizing the amount of burst they must have and need. Adding Tiamat to the recipe compliments them as the active, if timed correctly with your auto attack, can add to the burst potential. Also, what compliments "pillaging" more by being able to cleave multiple enemies?
To those that may comment that this item may further empower bruisers, note that bruisers thrive off of having both offense and defense, by introducing this item, it will make bruiser players think twice on why they should take this item over more defense.
If you've realized, I've taken away the health regen, mostly because the amount of sustain you're getting already by having Spell Vamp. Even though 15% doesn't seem much, I noticed you can stack it with Lifesteal and I just didn't want THAT much sustain.
TL;DR: Armor penetration OP, Health is for bruisers, This item is meant for burst casters.
Thank you for taking the time to read this, and have a wonderful day. Also, obligatory "RIOT PLS".