You don't

Without hesitation, Rain vaulted toward the bewildered beast, displaying remarkable agility. His fist landed squarely on the dragon's face, the powerful impact slowing down the creature. The dragon's head jerked to the side in astonishment, throwing it off balance and leaving it struggling to regain its composure in the face of Rain's formidable strike.

Based on the formidable aura emanating from the trio of dragons, Rain swiftly assumed that they were of a similar caliber to the Earth Dragon he had recently defeated. Despite the daunting challenge they presented, Rain's belief in the collective strength of his friends and the magic people fueled his determination. They could defeat them if they work together.