Potentially stupid question (selig)

first. I crafted a selig. woohoo!!

but why is my health 473 in town but it double to 931 in lairs? I can’t see any reason. obviously selig is less good this seadon but it’s still great for T12.

second silly question. how have I suddenly gone from 800B damage to 3T with the swaping to selig? I had to drop the grandfather, so I can’t see how. that one is for me to figure out but I went from stuck .. to clearing the rest of the season in 20 minutes. the whole season turned on one non GA selig