Goal: to estimate the efficiency of 101 lvl Summoner’s limits (Wynn Elemental Master, Wynn Spectral Master, Wynn Arcana Lord) In this experiment, the changing characteristics of Summoners and Servitors have been calculated. It was measured both with and without any skills. The results are stated in the table. Skill - Wynn Elemental Master: This skill is deprived of any buff for summoner’s skills. Characteristics increase, according to the skill description. Skill - Wynn Spectral Master: This skill increases the Servitor’s Vital Point Attack Rate. When this skill is used, such rate increases by 30%. Moreover, we would like to highlight that there is a mistake in the skill’s description. It doesn’t enhance Servitor’s P. Atk., only P. Critical. We know about this problem and the developers are working on it. Skill - Wynn Arcana Lord This skill increases the Servitor’s Knock Back / Knock Down Success Rate. Unfortunately, a significant augmentation of Knock Back/Knock Down hasn’t been noticed while using this skill. Nevertheless, we decided to inform the developers about this problem. All the other effects work according to its description.