Why One COULD Buy Crit DMG

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I Play Gangplank

Member

07-23-2014

This is a respond to the large thread claiming, "Why No One Should Ever Buy Crit DMG"
Thread: http://forums.na.leagueoflegends.com...ad.php?t=70173

Before you read this thread, be sure to check out the old thread to see how the calculations are done.

THIS ENTIRE THREAD IS UNDER THE ASSUMPTION THAT YOU CRIT ALL DAY, EVERYDAY. YEE HAR HAR...


The runes have changed up quite a bit, and with the new calculations, it is possible that Crit Damage Runes outscale Armor Penetration runes for late game.

For A: I use MARKS 2x Crit Chance runes, MARKS 7x Crit Dmg runes, QUINTS 3x Crit Dmg runes, all other runes are irrelevant as I use Armor SEALS and MR Glyphs.
For B: I use MARKS 2x Crit Chance runes, MARKS 7x Armor Penet. runes, QUINTS 3x Armor Penet. runes, all other runes are irrelevant as I use Armor SEALS and MR Glyphs.


A = (29% Crit Chance)
B = (17 armor pen)


Calculation:
Final Damage = Damage * Crit Damage * (100/(100 + armor - armor pen))

On 30 armor...
A = 100 * 2.29 * (100/130) = 176.15 damage
B = 100 * 2 * (100/113) = 176.99 damage

On 50 armor...
A = 100 * 2.29 * (100/150) = 152.667 damage
B = 100 * 2 * (100/133) = 150.375 damage

On 100 armor...
A = 100 * 2.29 * (100/200) = 114.5 damage
B = 100 * 2 * (100/183) = 109.289 damage

On 200 armor...
A = 100 * 2.29 * (100/300) = 76.33 damage
B = 100 * 2 * (100/283) = 70.67 damage

Add Infinity Edge

On 30 armor...
A = 100 * 2.79 * (100/130) = 214.62 damage
B = 100 * 2.5 * (100/113) = 221.23 damage

On 100 armor...
A = 100 * 2.79 * (100/200) = 139.5 damage
B = 100 * 2.5 * (100/183) = 136.61 damage

NOTE
Because of the changes to the armor penetration runes, Crit Damage runes are actually viable, and scales a bit better late game. If your opponent has less than 30-50 Armor, ARMOR PENETRATION RUNES ARE USUALLY BETTER, but if your opponent has more than 50 Armor, CRIT DMG RUNES ARE MORE EFFECTIVE.

Of course, one should not take Crit Dmg runes too seriously as this entire calculation is based on you Crit'in ALL DAY. Therefore, for the first 25-30 minutes of the game, you are at a serious disadvantage because your runes would not be used as consistently. And even if the Crit Dmg runes are a bit better late game, Crit Dmg runes are not THAT much better off than Armor Penetration runes.

SUMMARY
You COULD buy Crit Dmg runes for a bit more damage late game, but it would be smart to stick to either AD runes or Armor Penet. runes for the consistent early/mid game advantage.