Black March Style Floral Butterfly Piercing Technique (검은 삼월형 화접 공파술 , geomeun sahmwol hyeong hwajeop gongpahsool) seems to be a combination of Black March and a more advance form of the Floral Butterfly Piercing Technique technique which used by Twenty-Fifth Baam to destroy the combination attack of Charlie's Panorama Light and Vice Altar Director's Jungle Angry Monster.
Baam stabs himself with the Black March, absorbed it, and then a black object looks like Thorn appeared and came out from inside his body. According to Baam, this is not the Thorn, but the Black March itself. After Baam grip the "modified" Black March, it become a huge black saber in his hand. Baam then proceed to launch an attack, jabs the weapon to the front, making it increase massively in size. When activated, the Black March erupts with black shinsu in the shape of a colorful giant blurry butterfly. Charlie stated the attack would have killed them in one hit.
Baam used this technique again to attack Kallavan after he heard that Ha Jinsung was defeated. Kallavan provoked Baam by saying that Jinsung has died in his hand. Kallavan had no injuries after he purposely let the attack to directly hit his body and face just to see and observe the strength of Baam.
- Black March-Style Flare Wave Explosion (LINE Webtoon)