Panzer wrote:Shaper because they don't do anything. They buff a unit that can't do anything except for taking up space. Kroot are already better when getting replaced with Drones or Pathfinder depending on what exactly you want them for.
Buffing them won't make them good enough to warrant taking them over the other two.
Krootox are neat but die to a stiff breeze without having a unit to hide in like Ion Rifle Pathfinder could for example.
Don't do anything? Not got my index on me, I thought Shapers also boost Hounds and Krootox? I agree basic Kroot are not worth taking but with Krootox they do something useful don't they?. Hounds I use as a cheap halo to stop deepstrikes being close to my key units.