升遠古：凱恩與庫勒的詳細公式比較 - 暗黑破壞神

"To Reforge or not to reforge, that is the Question"

在Reddit上看到的：升級VS重鑄的詳細公式比較
https://goo.gl/ssRY58
https://www.reddit.com/r/Diablo/comments/4ivjdo/the_magic_number_is_638957/?sort=top

主文我有看沒有懂，而且超複雜，還要自己計算刷材料的效率、所用時間、所得數量
重點是下面那位jmdbcool直接來個重點節錄：
https://goo.gl/MqMSrJ
https://www.reddit.com/r/Diablo/comments/4ivjdo/the_magic_number_is_638957/d31hp9m
「This is some great research! To expand on this in a way any class can use,here's all the drop rates (go to Drop Rates tab):
https://docs.google.com/spreadsheets/u/1/d/1cM-s4e66ql2zsrkfkfKXmvVJ4zmngzxdzVLk9gvLvT8/htmlview?sle=true

These are given as percentages (instead of 1 out of x) but the math is the same if you do some conversions.

Your magic number (again, based on your farming rates): 1/63.8957
As a percentage: 1.565%
That's for ancients, so when talking about any item (like the rates on the google doc) it's times 10 = 15.65%.

So 15.65% is your cutoff point. Odds better than that, it's better to upgrade rares; odds worse than that, it's better to reroll. In other words:
Amended conclusion:

Any item with drop rate above 20% should be crafted with the rare-to-legendary recipe.
Barbarian Examples: Lidless Wall (50%), Standoff (28.57%)
Any item with drop rate between 20% and 14.29% should be crafted with both recipes.
Barbarian Example: Any 2H Mighty Weapon (16.67%)
Any item with drop rate below 14.29% should be crafted with the reroll-legendary recipe.
Barbarian Examples: Any 1H Mighty Weapon (12.5%), Hack (9.09%), Furnace (5.26%), Shard of Hate (2.17%)」

首先，先看個物品掉落獲取詳細表，中文是百科大製作的
原版英文：https://goo.gl/RmJCiU
百科中文：https://goo.gl/fYQ0gj
注意掉落率那兩頁，再取出所需物品的掉落率：
　掉落率大於　　　　 　　２０％，用升的
　掉落率介於２０％～１４.２９％，隨便你
　掉落率低於　　　　１４.２９％，重鑄

舉例：
以野蠻來說，警戒之牆的掉落率為３３％，用升的比較快
可是，憎恨裂片的掉落率只有可憐的２.１７％，就用重鑄的拚

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