Lee's combat mode mainly relies on the synergy of badges and the heightened enhancement of badges when under the "freelancer" state. During the active period of the badges, he can transform himself into the Hulk, a figures as hard as steel, and even outmatch "body cultivators."
The downside is quite obvious too. Despite his painstaking efforts, he has only collected five sets of "freelancer enhancement" badges, which means he can only go through five consecutive battles. If he were to engage in five fights consecutively within a short period of time, he would have to rely heavily on a large number of supplementary badges to drag out the time.
With only supplementary badges, his combat power is not bad, but under such circumstances, the gap between him and top players is considerable, essentially leaving him with no fighting power.
Therefore, this Grass Baby, capable of diverting the mockery of monsters, is quite meaningful to him as it can help him evade unnecessary fights.