edit: this is part of Hexproof preventing untargeted removal post 2.9 [Fixed in 3.0] - MtGPQ Bugs & Technical Issues - 505 Go! Official Forums and already under review.
https://mtgpq.info/cards/SphinxOfTheFinalWord
This guy gives everyone hexproof, but in the last match of the oath of the gatewatch 2 event currently it is also blocking me from casting https://mtgpq.info/cards/PerilousVoyage which couldn’t care less about hexproof.