I vote that wraithwings not be able to trigger pressure plates, regardless of whether they've activated a power token:
(a) because it seems to fit with the fact that they are airborne (fegundos don't activate them unless they crash and turn to ash)
(b) in terms of the player role a wraithwing that can activate pressure plates is like a roach/goblin that can also fly over I.e. it would be impossible to make a puzzle that involves a combination of roach/goblin and wraithwing, since the wraithwing could just do it all.
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