I noticed that Poisoned Star has the same price than Rage, with Rage being much more potent. It literally eliminates the chance to even think about building Poisoned Star.
Rage gives 30 Physical Power (Poisoned Star gives 20), 35% Crit Chance when fully stacked (Poisoned Star gives only 15%).
The only additional stats Poisoned Star has are the 15% attack speed and the passive (which is good but not great), but still, it doesn't justify the excessive cost.
Please reduce the price for Poisoned Star or increase Rage's a bit.
Poisoned Star should be the perfect choice if you're looking for a cheap and modest source of crit.
The cost I think would be right for the item is 2200 Gold, or 2700 for Rage.
Hope you keep an eye on this an apply it in future patches.