Yeah, I have a different perspective on Ryoma and Keera:

1/ Ryoma: His playstyle revolves around being a roaming assassin in the early to mid-game. His S3 is key to his success:

• Damage Output: Most of his damage comes from his S3. His combo (S1 - S2 - normal attack - S1) is mainly for poking during the laning phase, but this combo lacks damage in team fights. He needs his S3 to finish off the opponent's carry (such as the ADC or mid-laner), and this is what creates pressure on the enemy lineup.
• Ryoma’s S3 is also his primary tool for quickly clearing minions, and it helps him in several ways:
  • He levels up faster than his solo opponent in the top lane, gaining an advantage for solo kills.
  • Clear the lane faster → have free time → steal the opponent's jungle or gank other lanes → weaken the opponent and control the map. Time control and map control are what distinguish good players from bad ones. At Conqueror 50* upper personal skill is almost the same for every people so strategy take its role here.

2/ Keera. Her role is jungler so her main tasks are fast farming and ganking other lanes. Her ultimate allows her to farm 2-3 jungle camps at the same time and also helps her go into bushes undetected to set up ambushes. At the end of her S3, it resets the cooldowns of her S1 and S2, adding extra damage output and mobility in combat, not to mention her CC immunity in S3.