Raiya's attack at Logan's back wasn't a full fledged attack. Raiya was merely testing her opponent, seeing how well he could react to her attacks, and how fast he could counteract. From that one instance, she had enough information to make a full onslaught. But as she prepared to engage, Nemo stepped in. She had expected the counterattack, and was fully prepared to fein into it and end the fight there, but Nemo stepped in her way. 

[color=ec008c]"Tch!"[/color] Raiya let out an irritated scoff. She didn't let Nemo's intervention throw her off, though. Her plan she had formulated still would work, even with the distance now between them. That was when Raiya felt the manawaves of a spell echoing towards them. [color=ec008c][I]it's heading towards Nemo- no the target is me![/i][/color] Raiya thought. 

Thinking quickly, she used her enhanced flexibility from her tattoo runes to bend unnaturally backwards. The spell whizzed above her, her backwards bending flexibility allowed her to completely dodge the spell. The tattoo runes weren't exactly runes. Her iruzumi tattoos were an ancient shinto spell formula that integrated with her and enchanted her entire biology. There were others like her, with other shinto iruzumi tattoos that morphed their biology a bit, but only she possessed the hebi iruzumi. 

After successfully dodging the crescent shaped magic attack, Raiya began to put her plan into motion. First she moved out in front of Nemo, and then stabbed her sword, [color=ec008c]"八岐の大蛇 (YAMATA NO OROCHI!)" [/color]Raiya shouted. Her sword's blade extended underground and then split into eight different blades which shot up all towards Logan. The blades were made of mana, but they weren't manaegis like Felix's spell created blades. They were temporary iron blades created by magic from the earth surrounding the original blade. As soon as the spell faded, the blades would revert to dirt once again.