% Crit DMG vs Flat AD runes after 5.22 patch
I was contemplating as of 5.22 patch and the influx of crit % item using % Crit DMG over Flat AD. Yes I do know you be getting less AD starting (just farm) but it actually evens out quite fast. Please post any ideas on this matter.
Here are some of my calculations: with assuming just using marks and quints only since these are their primary stats and always having at least IE.
% Crit DMG gives +33%
Flat AD gives 15 AD
crit from 
+50% Crit DMG
the break even point: the calculation for average damage per attack (AD)(crit chance[base dmg+(crit dmg + IE modifier + rune modifier)]+non crit chancebase dmg) (AD+AD runes)(crit chance*[base dmg+(crit dmg + IE modifier)]+non crit chancebase dmg) at 20% crit chance: 274 AD (274AD)(.2*[1+(1+.5+.33)]+.8*[1]) = 377.024 average dmg per attack (274AD+15AD)(.2[1+(1+.5)]+.8*[1]) = 375.7 average dmg per attack at 40% crit chance: 169 AD (169AD)(.4[1+(1+.5+.33)]+.6*[1]) = 296.088 average dmg per attack (169AD+15AD)(.4[1+(1+.5)]+.6*[1]) = 294.4 average dmg per attack at 60% crit chance: 134 AD (134AD)(.6[1+(1+.5+.33)]+.4*[1]) = 285.152 average dmg per attack (134AD+15AD)(.6[1+(1+.5)]+.4*[1]) = 283.1 average dmg per attack at 80% crit chance: 116 AD (116AD)(.8[1+(1+.5+.33)]+1*[1]) = 290.464 average dmg per attack (116AD+15AD)(.8[1+(1+.5)]+1*[1]) = 288.2 average dmg per attack at 100% crit chance: 106 AD (106AD)(1[1+(1+.5+.33)]+0*[1]) = 305.28 average dmg per attack (106AD+15AD)(1[1+(1+.5)]+0[1]) = 302.5 average dmg per attack
At around mid game say like level 13, champions have an average base AD of around 95 and with IE which gives +65 AD, its around 160AD. With even just one more full built crit item (Rapid Firecannon, Essence Reaver, Statikk Shiv, Phantom Dancer, Runaan's Hurricane, Trinity Force, Lord Van Damm's Pillager, or even the Lightbringer) you would already have higher damage per attack.
So basically with less than 2 fully built items you would have better average damage and damage would only get better as the game goes on.
So what are the thoughts on using crit dmg runes now and is it feasible to last until the break even point.
