CommentStreams:Bc1ce1fb541f068385d18f3b9859f3b0

Remember, that you get back 15 energy when you fight at location 21. Plus, if you farm keys at location 23 you also earn WT, which reduces the cost of keys. Per my calculation silver coffers (tier 2 dups) are going to be the main bottlenceck while farming which you would get an extra one of two golden coffers. But, the insane 11 hours of farming is a non-starter for me anyway.