tbh last boss on zalesky posad is so easy.... after we killed this boss (on p2p) I was like "wtf that's it?"
Tank doesn't has to take more than 1 beam, but it's nice when he can take 2 of them. I could take one of the beams as dps without getting much damage. I am playing with about 220 concentration and 200 bloodlust. Our mage was able to take one beam too and our support had green/legend gear, but still very easy.
The aoe from the first boss on turtle allod is nothing againts the aoe from second boss. If you have the dps and concentration the first boss is ez going. For me there are just 2 bosses left then I am done with s2. For people from f2p it must sound very funny, but it's a lot harder on p2p especially when you don't have skilled people. Our usual party has 2 people with around 1m single target dps and one who is "a bit" behind those 2. The thing is you barely have people that can do this dps on p2p server. Overall I can say that only hardmode is really hard on p2p server. Astral is pretty much easy, just that most of the people suck. Maybe it sounds rude, but at least it's honest

(I suck too, don't worry)