"The downside to a powerful ward," Remus called over, "is that it takes time to cast and time to form and more attention to cast!" Teaching even as they go. "Layers can provide the time and safety you need to cast such a powerful one." He gave a quick flick of his wrist and dismissed the vines, letting then fall from Draco.

"Power isn't always the best first attack or defense. Sometimes, something more simple can be the deciding factor."