A rate card is a creator's price list and its rules, a rate per placement plus modifiers, minimums, and packs; it publishes to the media kit and directory, and every offer is priced against it, with the creator always setting the rate.
A creator's price list and the rules attached to it: a rate for each placement, plus modifiers, minimums, and packs. It publishes to the creator's media kit and the brand directory, and every offer is priced against it. The creator always sets the rate; Publsh shows benchmarks and fill as context.