300g,+12% AS
350g,+10 AD
1000g,+25% AS, +15 on-hit dmg:
while 24% AS+ 10 AD = 950 and your ability will do more dmg with 10AD.
1100g,+30% AD,+ 45 move speed.
So is a too bad mid-item?
1200g,+50% AD,+10% CDR, but used to build 
only.
So the best AS item can only be used on AP champs, as best CDR item 
can only be used on AD champs.
Are these items designed carefully?
...I mean, you're not wrong but that doesnt mean you're right. 2 daggers and a long sword doesn't build into Runaan's, and Zerker greaves doesn't build into ANYTHING. Stinger only builds into Nashor's which, I guess, is sort of a problem, but BorK has only slightly less AS and is a much better item for Marksmen. Not every item has to have a direct analog to another class of champ
I think his complaint is this:
CDR is a stat for mages, yet the best CDR item is for AD champions. Attack Speed is a stat for marksmen, yet the best Attack Speed item is for AP champions.
He thinks mages should have access to a better CDR item than marksmen, because CDR is a mage stat. And he thinks marksmen should have access to a better Attack Speed item than mages because Attack Speed is a marksman stat.
Except marksmen have Runaan's Hurricane, Rapid Firecannon, Phantom Dancer, and Blade of the Ruined King. And mages have Athene's Unholy Grail and Morellonomicon.
So your point is invalid.
cdr isnt just a stat for mages, there are ad casters.
the really weird part is that the best cdr item in the game is for marksmen. a class that was balanced around being heavily mana gated and not having cdr available, because they already have two 1200 damage point and click auto attacks per second.
now theyve just been given the stat for free, without even having to make a choice to either go a more caster focused route, or a more auto attack focused route.
