That modifier might as well come from outwitting or befuddling, particularly with a text that evokes mystery.
Sounds to me like this choice says more about the actual prejudices of whoever made it, rather than objective parameters.
If you replaced it with "Wanderers" nothing of value is lost.
Using a real group name is thr only reason your comment (and this one) exists.
It literally creates tension where none should be by its very existence. That's problematic.
Are there any great substitute terms which focus on the lifestyle commonly associated with the Romani? "Nomadic" (or "nomads") is associated more with peoples who live away from civilization; "travelers" is a little weak, as it can imply a temporary activity.
It is an exonyme, so shouldn't be preferred but is not a racist term in itself. It wasn't coined as a slur and isn't in itself derogatory. It is built in the same way Roma is from a time people thought the ethnic group came from Egyptia (well most likely what was then called small Egyptia so Epirus in Greece). It also often tends to be used as a synonym for nomads with people referring to the Irish Travellers as gispies.
The card effect however seems to refer to the stereotype attached to Romani which is very much racist.
As an aside, it is a lot less clear to me as a foreigner why crusade and jihad are seen as racist cards. They refer to historical conflicts which were motivated by religion not ethnicity. It might be because my native language hasn't stretched the definition of the word racism as much as American English did. The world now seems to encompass any form of prejudice in America but confusingly to me sometimes strangely not things which would be considered extremely racist in my native language like applying the world race to humans. Sometimes I feel like a cultural gulf is opening between both sides of the Atlantic regarding what is and isn't appropriate.
Btw, if Pradesh Gypsies is racist, we better start torching a ton of Marvel comics - Dr. Doom is a gypsy and all the (often excellent) stories around his background use the exact same imagery, all the way to the cyberpunk Doom 2099.