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WarJay77
(Troper Knight)

Among a party of adventurers, one of them is a low-level "minion" whose only real role is to do the menial stuff the party can't be bothered to deal with like making food, maintaining their gear, and being abused when the party has nothing better to do. One of these roles is to go into low-level dungeons that the party can't be bothered to deal with to farm items from monsters that only appear in those dungeons, and where the trope comes in is that all that dungeon-delving allows the minion to gain enough experience, skills, and gear to turn the tables on the party, quickly knocking them down a peg hard enough that nothing they do can prevent their former minion from taking all their high-level gear and abandoning them.note