OG Maid

The Maid could very well be the active (-) counterpart to the Sylph, or the passive (+) counterpart to the knight. I believe it to be the first one: the Maid is the active (-) counterpart to the Sylph. The Maid is thought of to be the one who “can create (their aspect)” or “create through (their aspect)”. However, the Maid also is thought of to be able to “protect or clean up [using] (their aspect)”, which would make them the passive (+) counterpart to the Knight, because while the Knight fights for others or themselves while the Maid protects themselves or others.

A different idea is that the Maid is ‘made’ of their aspect, and therefore is the “one who gives (their aspect) to others”, because the Maid will almost always start with a surplus of their aspect at the beginning of the game which gives them plenty of their aspect to give away to others.