...
Black Hammer only stopped when he was satisfied at beating his brother. This blacksmith sure was cruel. He controlled the strength of his attack where it could only be enough to hurt Black Hand but not enough to threaten his life. And wherever the priest's HP reached the critical level, he would always slow down his attack or stop completely to make sure that Black Hand could heal himself.
Naturally, Black Hand didn't have a choice but to heal himself and recover his health bar since they were currently in the middle of a raid. And if he suddenly respawned in the Resurrection Hall and the scouts of their guilds spotted, then he would only risk their operation and leak it accidentally.