In truth, it wasn't only pets that could advance; the monsters in War could advance as well. For example, back when Feng Luo was doing his mission in the Withered Desert, he encountered a Level 40 Quasi-Boss, the Desert Fire Ant Queen, in an Intermediate level nest.
Just as the Quasi-boss was at its deathbed, it succeeded in advancing itself into the strongest grade in War, the Boss grade Desert Fire Ant Queen. With one skill, it obliterated all the players within a 200-meter radius!
Of course, that situation was quite unique. It was because it was clear that a group of players was trying to complete their mission back then, and they had used some unique method to induce the Desert Fire Ant Queen to evolve.
Feng Luo was still using the Barrett back then, and after he stole the last hit on the Desert Fire Ant Queen from the Light Armor Warrior clad in black, for some unknown reason, it activated his talent's evolution and his HP also increased by 1,000 points.
