The crowd did not know that although Ye Futian had cultivated in inscribing, he had not actually practiced air inscribing. Previously, he had used his Freedom Meditation to observe Bai Ze's air inscribing and saw Bai Ze using his Spiritual Energy to create inscribing paper and guiding the spell into it. When he cast the spell, he could directly use his Spiritual Energy to control it and use it in battle.
Although air inscribing seemed easy, in reality, it required a delicate control over one's Spiritual Energy. Ye Futian could only inscribe spells that he could cast in a short period of time, he had done that in previous battles as well, so he was confident that he could emulate Bai Ze's methods.
Around Ye Futian, the Spiritual Qi in the air accumulated and entered the spell scroll, causing a brilliant glow to emit from it. A dangerous might wafted from the spell scrolls as they were being created.