Being able to win this victory more easily was a bit of a fluke, but it was inevitable.
The previous four adventurers were extraordinary in strength. Even if they used the means of sneak attack, the Litch also spent a lot to kill them all, and for this reason, they also lost their own two powerful subordinates. Much of its magic was consumed, and it failed to restore its body protection spells.
In this case, it only failed when it met four adventurers who were more powerful.
"I just don't understand; why didn't it run?" said Raver was with some doubt, "If it fled directly at the beginning, even if that zombie couldn't run off, should it always run away?"