"Red light! Physical attackers, halt!"
"Green light! Magic attackers, halt!"
The color changes of the Obsidian Giant followed a fixed rhythm in Normal Mode. Since Li Yi's team was composed of the elites among elites from every major guild, they no longer made any more errors once they got the timing down.
That was, except for Sister Windcloud Nine. She had only attacked it for twenty or so seconds when she was 'reflected' to death.
The Obsidian Giant had 200 million, and its DEF was extremely high. As such, the attacks from purely physical attackers such as Warriors and Archers were like peanuts hitting an iron board. In other words, they dealt measly damage, and that was extremely dispiriting.