You said that as a joke, but there is some design space there. Collector numbers are ordered by card frame type (typically color then special frames) so a card that had you set a range of, say, 20 collector numbers and boosted spells in that range could send you in interesting directions while drafting and deck building. You could go monocolored by centering yourself in that color, or two color by setting yourself at the boundary. Or "mono gold", etc.
As that gets into the nitty gritty of the card, that would appeal more to the Mel aesthetic group, while watermarks appeal more to Vorthos, who cares about flavor.