Trolls aren't even scary anymore but that thing scares me

I have now defeated bonemass and while I was travelling to bonemass altar I found possible next base location, where I went after defeating it. Small meadows with draugr village I could set up my new house, black forest basicly in the backyard, mountains right after that and plains not far away. I was aware of the risk of trolls because the black forest was so close. but decided to build and see what happens. Well couple days later after I finished building floor and I had gone to bed and got more materials from my main base and came back. There it was behind my possible next base, two star troll XD for a moment I was debating if I could take it down but quick look at wiki and remembering how the armor works made me go back and look for alternative base location