To to repair Wit's end Just make it like it was in season 2.

Recurve Bow(1000) + Dagger 300+ Null Magic Mantel (450) +400 = Wit's end (2150) 40% attack speed 30 MR Unique Passive: 42 on hit magic damage Unique passive: get 5 MR for auto attacking which lasts for 5 seconds stacking up to 4 times.

Only thing I changed from season 2 is the added in Dagger since Recurve bow now offers on hit damage but lower attack speed. The current build path on live would be perfectly acceptable in this state.

Here is a video with the stats clearly stated at 23:45 and yes it shows Irelia who never gets it these days buying it against a Renekton. For those who dare question it being better and bought by more champs back in season 2. https://www.youtube.com/watch?v=F0_O3Bg7EYw

This is how you make the item worth getting again Riot. You had it in a really good and useful place back in season 2 that was not over the top in denying enemies their own power with the mana burn having been removed by that point.

Get rid of that waste of item value passive that it got from malady. No one besides teemo ever got Malady for the reason that no one could make even half decent use out of the MR shred passive outside of Kayle, WW and teemo and only teemo could justify it over other item options. You might get a couple others like Azir these days who might be able to justify it but by all means Malady was a poorly designed item and the less then useful for the cost passive still lives on making a once great item not worth the cost.

We will not shut up about Wit's sad state until you address the state of this item riot.