Nostalrius Begins - Quality wow vanilla realm (1.12)

November 25th,11:20AM in server's time. Wudang (lvl 60 Orc rogue)and Syraq(lvl59 undead priest) are double open by one in the winterfall.Syraq ride on the horse follow Wudang,he had no act even a mob attack him.

Sure yeah

I believe the term you are looking for is "multi-boxing".

When I hear "double open WoW" I think of someone using that instant log trick to avoid getting killed.