Stein notices the change in Inigo's face. That reaction was unmistakible. Recognition. Of course, Inigo had recognized his name. However, as Stein tensed to take him out, Inigo rather acted as if nothing had happened. Interesting. A game of cloak and dagger? That would be quite amusing. He would have to make sure to kill the boy later, but for now, he could afford leaving him alive, and killing him would blow his cover. Using the confusion of Weiss's attack, he threw a small gem at Inigo. An oddly familiar stone that no doubt Micheal had heard about once from Drac. It was one of Stein's trophies, containing a fragment of Tsukune's soul.
As Mia sent Weiss out, Stein let the blade of Black Blood coming towards him slice his leg as he tumbled out of the way. However, as he pretended to have been seriously wounded, he noticed Dark Weiss going out of control. That wasn't part of the plan. Oh well. Time to improvise. Smiling, Weiss threw the INsanity Totem to the max, activating Ruby's Witch Insanity at full throttle, focusing his full attention on her. He would increase the confusion to the maximum, and let Ruby kill some of her own friends. He'd hopefully be able to deal with Kaika in the mess as well.
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Mia drops down next to one of the critters, hugging him, before using her Soul Wavelength to make him explode, once more raining the area in gore. Everything was perfectly beautiful, and she was dancing in the corpses of her enemies. She laughed out loud, as thin wires of Black Blood nearly two molecules aross swung out, slicing through trees with incredible ease. Everything in the area was reduced to small small sliced pieces as the Black Blood Wires moved rapdily through trees and critters alike, killing every living creature larger than an insect in a fifteen meter radius.