The clashing titans were unobservable even to Binela. Who was currently the strongest combatant that viewed the battle.
Felix's attacks were precise, and his defense was airtight while he tried to recover the bodily strength he lost for dying once.
He and Marshallo were currently in a pretty equal fight, but he would be able to push the odds in his favor if he recovered to full strength.
Now that he was slowly incorporating instinct into strategy, creating a perfect blend of battle sense, he was able to direct all of Marshallo's attacks into the surroundings, basically taking no more damage from him.
The damage that Felix redirected to his surroundings was creating more and more spaces where the spatial laws were broken and fragmented.
Felix was basically held between a rock and a hard place as he fought Marshallo, considering that the broken space wasn't safe at all.