The warning was appreciated, as Raven ducked. Battle instincts. Turning it into a roll, and coming up to her feet with both hands spread out. Dark energy at the ready. "Azerath Metrion Zinthos!" She shouted and let the dark-energy coalesce into a shielded dome around the monster. She couldn't hold it for long, but it would give her and Madoka time to think.