"Atherton Going To The Frontline" 

This quirk is why Father Dracu could reign over three generations of the blood clan before they all collectively chose to end their lives to persevere their strength at their peak. 

In the past a thousand years, King Atherton had been the blood clan's king and no one could replace him so far. 

Even in the last war, King Atherton was the reason why the blood clan wasn't exterminated. 

But they didn't see the king open his domain in the war back then because there were too many halflings warriors who joined the battle with them. 

For these halflings, the Reign of Darkness wasn't a good thing at all, which was why the king never opened his domain in the past war. 

But even so, the king led everyone to deal with the celestials and achieved a tie. 

Even though the blood clan was forced to hide because they lost too many halflings, the king had proven his strength.