Hello, Eddie! Where did you come from then? And in answer to your question, not lightning bolts exactly, but I can shoot an eldritch blast of energy from my bare hands. And climb walls like a spider.
Any space can become eldritch space if the Elder Gods claim it for their own. You have to listen out for the slurping.
I'm not sure how I feel about mermen, but thanks for the tip. Maybe you've seen one of my friends? A singing green half-orc, or a clumsy dragonman who may be giving out pamphlets?