Nothum Adlido

Blasting Wand (860) 40 AP
Cloak of Agility (830) 18% crit
Brawler's Gloves (400) 8% crit
Glacial Shroud (1525) 425 Mana, 45 Armor; 15% CDR

Stats (3615+385 combine= 4000 gold):

50 AP
30% crit chance
500 Mana
50 Armor

UNIQUE Passive: 20% Cooldown Reduction
UNIQUE Passive: Increases critical strike damage by 50%

This would really synergize well with Nashor's for hybrid building. I'm not sure what to do with the crit damage passive, whether to let it stack with IE or not.

Thoughts?

That is insanely imba. Not only have you now created a way for AD-focused hybrids to hit 300% Crit Damage (unless you specifically code this and IE to not stack, which is difficult because the only item matching the two builds is Cloak of Agility), but you've got Armor, AP, Crit and CDR to boot. The individual stats aren't what's wrong; the combination of offense and defense is what's wrong.

for what champion would u buy that ?

The stats on this would instantly make it a must buy for ADCs across the board, as it's TOO GOOD NOT TO BUY. Huge mana reserve, 20% CDR, increased crit strike damage? Even when an ADC wouldn't really use the AP or armor, everything else is just too good to pass up.

This item is alright in it's concept but it would likely end up like Nashor's tooth where it doesn't get used much because not many champs can really get full use out of it.

IT would however open the door for some champs to have to have other build paths.

You might even see it on Xin who would like the extra health restoration on every third attack as well as the extra crit damage.

Boots (likely attack speed)
Nothum Adlido
Frozen mallet
Inf Edge
The Black Cleaver/PD
GA

That is the best build I can come up with on the spot to use this item on Xin.

IF the crit damage passive does not stack then take Bloodthirster instead of inf edge.

What if you make it so it doesn't stack with IE? Would that make it better?

Or replace Glacial Shroud with just a Chain Vest, so it removes the Mana/CDR components?