Lach smirked as he saw some of his blood land on her but knew his work wasnt done yet. Depending on the amount of blood it took time to negate the magical power in someone if they only had a drop of blood on them. But! I did automatically weaken their powers. 

And soon he was surrounded by the speakers and heard from sam that he had her.. at which he ignored. The blast she sent out helped with that. though they werestrong they were not as strong as before, but he didnt want to show that yet.... He jumped but a little to late on purpose allowing himself to get thrown and land hard on the ground near Marie. hiding his hand which was cupping more blood flowing from his wound. he gets up slowly feinting being hurt. Sure enough she would say something, at which he ran closer to her and swung his blade at her again, he then as he swung his blade flicked all the blood in his hand at her as well.