原文如下：
The actual amount each item increases item discovery is
Traveling Merchant Hat = 25
Covetous Gold Serpent Ring = 50
Covetous Gold Serpent Ring+1 = 75
Covetous Gold Serpent Ring+2 = 100
Jester's Cap = 50
Prisoner's Hood = 10
Prisoner's Tatters = 15
Symbol of Avarice = 100 (also increases soul absorption, but you gradually lose health (5 per second, can be reduced with the Ring of Restoration and Charred Loyce Shields))
Watchdragon Parma = 50 as of patch 1.10
Rusted Coin = 100
大概意思是如下装备可以提高掉率：
旅行商人帽子 25
贪婪金蛇戒指 50
贪婪金蛇戒指+1 75
贪婪金蛇戒指+2 100
奇术师帽子（小丑头） 50
囚徒帽子 10
囚徒上衣 15
贪食者烙印（宝箱头）100
卫龙盾 50 1.10版本以上
锈蚀硬币 100
关于掉率装备的组合：
Prisoner's Hood and Tatters only combine with each other and still yield numbers lower than most single items.
Traveling Merchant Hat doesn't seem to combine with any other item in pairs, but somehow produces a spike in drop rate when used in triplets along with Covetous Gold Serpent Ring +2 and Rusted Coin.
Covetous Gold Serpent Ring +2 combines with Jester's Cap, Watchdragon Parma and Rusted Coin, but results are only slightly better than with single items.
Symbol of Avarice performs best among single items and combines with most other items, often resulting in the highest numbers. Coupled with Rusted Coin, it forms the base for the best combinations.
Using 5 items at once makes little sense as some items override each other – the same or even better result can be achieved with 4 items.
In short, best options are:
1 item: WDP < CGSR < RC < SoA
2 items: CGSR + JSC/RC < SoA + WDP/RC
3 items: CGSR + WDP + JSC/RC < CGSR + TMH + RC (somehow) / CGSR + WDP + SoA
4 items: CGSR + WDP + RC + JSC/SoA
大概意思是，囚徒系列对于提升掉率的意义很有限，刷装备时最佳组合是宝箱头+金蛇2+卫龙盾+硬币，次选是小丑头+金蛇2+卫龙盾+硬币。在装备/使用三个物品时，优先选择宝箱头+金蛇2+卫龙盾，次选是金蛇2+旅行商人帽+硬币，或是金蛇2+卫龙盾+小丑头。
按照楼主个人的实际体验，一周目用霸者契约+金蛇2+卫龙盾+小丑头的实际掉率就非常可观，刷黑银枪时推土塔守墓人物品掉落率在60%-70%左右，沙漠魔法师物品掉率几乎达到100%，刷沙法套时能拿到大量龙力护符和枯萎的黄昏草。此外，平时常备金蛇2+卫龙盾+小丑头也能达到不低的物品掉落率，楼主刚到阿玛娜祭坛时疯狂落命，但也收获了不少光石。