Meant as the opposite to favouriting items, due to the large variety of artifacts I think it could be useful to not just distinguish between favourite and neutral options but also add a disfavoured option which the player might want to avoid.
I am not quite sure yet what might be the best way to highlight them compared to the pink hearts for favourites, like whether they should have a red cross icon, greying them out could imply other things which might be better to avoid.
This might prove a bit more useful with my other suggestion about favourite sets, so it would be possible to save sets of favourite and disfavoured artifacts and tablets (though when it comes to tablets I feel like they may be seen differently from artifacts, weapons and miracles).