The best case for all of these cards is probably Edric, Spymaster of Trest, which held steady at around $4 with very fringe legacy play, until it ended up winning a SCG open last April and spiked to $15 overnight (before getting reprinted in Conspiracy a few months later and dropping dramatically)
Misspellings in names, attacks, or descriptions are another giveaway and should raise suspicion immediately
I rebuilt it with those goals in mind
You can only use this effect of "Ebon Illusion Magician" once per turn
Narset, Parter of Veils Printed in War of the Sparks lets try static abilities era, Narset quietly slipped into play and informed your opponents they were no longer allowed to draw cards
Marincess Battle Ocean X SPELL Field All "Marincess" monsters you control gain 200 ATK, also each one gains 600 ATK for each "Marincess" card equipped to it