Low-fantasy D&D aliens?
I want to stick aliens 馃懡馃浉 into my next D&D campaign. My idea is to have little grey men show up in a flying saucer and abduct the party. However, I'm worried that this is too comprehensible for the average #DnD character. I want the PCs to be confused, but not the players! What's the weirdest alien you've ever thrown at your D&D party?
Side note, I also want to give the baddies #mechs. How do I mechanically handle this?