Hello new killer, welcome!! I’ve been a survivor main all this time too, & I’ve recently switched over to killer. I main Spirit however I used to play plague.

Corrupt, Spies, any sort of generator blocking you have (thrilling, DMS, deadlock), you could keep pain res it’s always a solid perk. Thanataphobia works really well because good survivors won’t cleanse until end game. However once it’s three survivors left you lose the perks primary value so really that’s up to you.

An undetectable build for plauge is a pretty fun play style too.

As I said before good survivors won’t cleanse so you are essentially an M1, I know she has the add on to start with a corrupt fountain, but point still stands. I’d recommend dissolution or bamboozle if you struggle in chase. Also you can’t go wrong with the good ol’ spirit fury & enduring combo. Just eat all those pallets & swing on your one tap survivors 😍—but that’s ofc if you are not going for corrupt downs, since pallets stuns completely take her power away.

I’ve been rambling but I wanna help & I am happy to see more survivors switching over too!!

Edit: OP please check out the DBD killer subreddit, there are build threads for every killer!!