The Blood Moon occurred once every ten years—a rare and mysterious event that sent waves of unease through the magical community. For those with abilities, it wasn't a time for celebration; it was a time for caution. Most chose to hide away, avoiding exposure to the unpredictable effects that came with the moon's crimson glow. It is because, blood moon will suck the powers who will exposed to it. And those who are inside of their houses or rooms, they'll feel weak.
For reasons still debated by scholars, the Blood Moon disrupted the flow of magic. Powers would weaken or even disappear entirely, leaving even the most skilled spellcasters vulnerable. The air felt different, heavier, and laced with tension, as though the moon itself was watching.