vayne 20% of total dmg is true damage according to champion .gg

seriously ,if true damage is late game killer ,it isnt because if u have 800 health it takes same portion of health bar as one with 4k health ,then you see 400 basic 400 true damage or 800 basic 1400 true dmg vs armor. 700 basic 500 true dmg ,and ofc botrk aside of that thats broken ,no other adc has that many tank killing power and even vs squishier targets its too much id suggest making it 4 to 6% max if not lower ,it has no cd ,basic tumble condemn = true damage in half sec its like basic invis basic true dmg ,basic condemn ,true dmg ,dead how is this unhealthy passive without cd ,only related to attack speed allowed ,not even lw is required,its not even magic dmg active like kogmaw W its permanetly ON infinite true dmg