Just a quick note because this will hit PBE soon (**Monday**) and will probably require some decent scrutiny / input. I also wanted to provide a quick heads up to head off the storm of conjecture these kinds of things usually do.
Testing some fairly severe Doran's Shield nerfs - going kind of ham on the initial testing numbers to try to quickly find the point where it makes or breaks things.
Doran's Shield is warping the bottom lane matchups and pick structure right now fairly significantly. The relative power of the item has also dramatically increased due to the mastery / vision / support changes and so the item is just better in every respect this season compared to last.
What this means is that certain harass based characters are basically in a weird twilight state where they get stomped heavily and also have to pick up shield in order not to get counter bursted by the same ones using Doran's Shield.
100 Health --> 80 Health
**10** HP/5 --> **5** HP/5
8 Block --> Unchanged
The idea behind hitting just the Health / HP/5 is to enable magic-based harassment still effective while also keeping Doran's Shield strong against ranged attacks *(I.E. I am fighting Caitlyn and Lulu and I hate my life.)*
We like the item's niche - but at the moment it's just too generically good against a wide array of matchups at the moment and shuts down both counterburst and harassment strategies a little too hard.
I suspect that the HP/5 nerf is a bit much and we'll have to reassess the strength of some mid-laners who rely on the item. As for 'Why do this now?' kind of issues - We're in the middle of some tier 0.5 item cleanup and Doran's Shield also kind of warps all of those issues, making tier 0.5 items kind of dance around the fact that they'll never compete.