What is going on with this item. An obvious case of pay to win where the immortal is vastly better than the original wraith.
Using the Immortal makes it:
1. Harder to see the AOE of the wraith
2. Harder to see the nubmer of wraiths if stacked on top of each other.

There was a reddit post made about that from another user:

Can we have a rework ASAP. I did not know that dota is officially pay to win now.