1. In case of Mayane vs Biron I usually avoid 1vs1 fight with biron Except some cases like jungler came or Biron's condition is bad and progress the game with many roams 2. Charlotte vs Biron Of course, the early phase and lane phase Biron is much stronger than Charlotte But after mid game if charlotte getting enough items, charlotte is better than Biron in overall points Just like the teamfight capability is better than Biron (Aoe Airborne/infinite skill&Enhanced basic attack) Also not easy to lose 1vs1 after having few core items So, If i say diffrent point of view Biron must do something and overpower charlotte at early game If not, charlotte is advantageous after all (If the gold and level goes similar)
Are you saying Xioaho Dun? 1.Using high mobility / avoid 1vs1 fight with dun and just quickly clear lane and roam insanely -Sun Ce/Mulan 2.Or you can confront him - Allain/Biron etc. I personally think there's more heroes for confronting Dun But Allain/Biron are much easier to deal with Dun (Low difficulty/Low risk) Also, avoid Dun's ultimate as much as possible while fighting with him Or use CC immune skills at the right timing