Good afternoon!
1) Will I loose red portal near to Anya (5th town) if I kill Nihlatak and don't activate Halls of Pain portal?
2) Experience for 121 lvl can I get only from signets of experience? Where can I get so many signets? Also I heard that I can get exp from Destruction Cows (Wirt's Leg + Tome of Town Portal → Cow Level portal). Is it true? How many cows should I kill to reach 121 lvl. As I understand after Save and Exit I loos all exp if I did't get 121 lvl. Will it be enough to kill all cows in Cow Level before Save and Exit to reach 121 lvl? And only Cow level? I heard about duncraig too.
3) Is there exists any reason to farm Nihlatak on destruction difficulty insted of Nihlatak on terror difficulty? Are they both drop 1 signet of learning (this is my main goal to go there)? How often does Nihlathak drop SU items on destruction difficulty (SU /per 100 runs, my magic find is 450%)? Will I get more SU items if set "players 2" or 4, 8? Does it make sence or better I should go to Tran Athula/another uber for SU?
Thank you!