The passive skill of the new Lamia in LOL was " Snake Shadow Wandering ". Its effect was that with every stack of passive Lamia's attack speed and movement speed would increase. At the same time, there was a certain chance to trigger the passive when she received damage. If 400 layers of passive were stacked, Lamia's attack speed and movement speed would reach the highest value. At the same time, there would be a certain chance to trigger the passive when she received damage. However, it was important to note that stacking passive required mana consumption, so it was necessary to maintain sufficient mana during the process. If the effects of the 70 and 200 stacks hadn't been triggered yet, it might be because Lamia hadn't used up enough mana during the process of stacking the passive, or the timing of triggering the passive wasn't accurate enough. It is recommended that you continue to practice using the Lamia to better master her passive skills.