User blog comment:PurpleWii/What if more items were like Sterak's Gage?/@comment-24385282-20160418011117

If you want to make only acquirable on melee champions, why not just make the item melee-only? Not only does forcing players to have a base health of 2000 exclude some, it leaves the few that can reach the amount waiting much longer before they can even use it because it's impossible until level 15 at the earliest, and for only a few champions, while the rest wait for level 17 or 18.

Furthermore, though they must wait until level 18, having the minimum HP so high doesn't even exclude all ranged champions. You noted this yourself, but the number is much higher than 3. It leaves, , , (sort of), , , and  (sort of). Still not very many, but double the number you mentioned.

With my critique of your proposed changes to the item out of the way, I do agree with your actual point; that more items than just Sterak's and should scale off of the champion's  stats.