[Loba]

I feel like there is probably a way to do this, but I'm not sure.

Is there a way to make it so if two tags are present it adds a third? Basically I need a boolean AND, but I can't seem to find a good way to do it.
If, say, both hunter!Cas and angel!Dean are present (not either/or) in freeformtags then it would add reverse!verse and AU and keep hunter!Cas and angel!Dean as well. I've considered the below, but it doesn't work as I have it written.

freeformtags,category,genre=>^[Rr]everse.[Vv]erse|(angel!Dean)(hunter!Cas)$=>reverse!verse\,AU\ ,\1\,\2

I've fudged around with this for awhile, but am stumped. Thoughts?

Edit:
Also, there is a minorly inconvenient thing where whenever I make a fic series into an anthology it repeats the ship name and fandom name for each entry in the series. Like, an anthology with five parts of Harry/Draco fic would have the ship entry as Harry/Draco,Harry/Draco,Harry/Draco,Harry/Draco,Harry/Draco and I have to pop in manually and delete that and replace it with just Harry/Draco. I briefly entertained the idea that my ship column was the wrong type, but it doesn't seem to be that. I've only attempted anthologies pulled from ao3.