System players are very much real, it doesnt have to be as detailed as "they can only succeed when they have XYZ number of coaches players etc" but Demon1 is the easiest example i can think of, HE HAS NEVER BEEN A HARD ENTRY DUELIST, potter understands this and plays around her players strengths, when demon1 goes to NRG and even now on LEV, they start using him as a hard entry duelist and he underperforms, its not like demon1 just forgot how to play the game, he's just playing the game in a way he's uncomfortable with

https://www.youtube.com/watch?v=5WWXJqfqZDY&ab_channel=Platoon

^^ this is a great video that i think explains whats happening in a pretty simple way to understand

didnt specify that it has to be currently tier 1 so im going with aleksandar