What if Atma's Impaler did DoT physical damage + New passive?

I feel that should be in a better place and with the current Health to AD passive but it's not going to get any better than it is currently. The best course of action should be to change the recipe of to allow for a better stats/passive. So I would like to offer an idea that changes the recipe to:

(2500g) = (720g) +(1200g) + Combine cost(580g) (MELEE ONLY) -Stats: +45 Armor +25 Attack Damage +15% Critical Strike -Passive: UNIQUE PASSIVE - Critical strikes causes your target to bleed for an additional 90% of your Base AD as physical damage over 3 seconds. UNIQUE PASSIVE - (See below)

I would like to give two Unique passives; one to help with critical strike chances and another that does stacking burst damage or effect(think of Braum's passive except personal). Help me decide between:

Doing physical damage gives stacks that at max stacks does an effect...

1. Target takes Physical damage
2. Reduces the target's Armor by X amount
3. Slow

This new recipe will allow champions who pick up this item do be able to do DoT damage similar to and . Additionally, this item helps champions who have abilities that are tied to Critical strikes and open new ways for new champions to interact with critical strike chance. The new version of may popularize builds of high ad, light defense, high hp, and low critical strike chance.

Please leave a comment on what you think of the idea and what UNIQUE passive should be associated with the new Atmas.