"Favorite Fantasy Monster You’ve Never Used" Topic

Exactly what is says— it could be a monster you've wanted to use OR one you respect but have never used/encountered either as a GM or as a player. This is for RPGs and tabletop, and could have monsters from mythology or original to a game (if the latter, please list source)

Here are some of mine:

Beholder (aka Eye Tyrant). Love these iconic D&D beasties, but I realized I've never actually used or encountered one in play!

Displacer beast— Again, iconic to D&D. Never fought or use done.

Catoblepas (aka Necrozon)— medieval myth and AD&D/D&D

Mindflayer— AD&D/D&D

Lich— nope, never met one, never used one. But an undead wizard is an awesome thing.

Hydra— seriously, I can't believe I've managed to avoid these, even on a tabletop. Not intentionally, I assure you!

Wyvern— okay, I've used one as a DM, once. But I love these poor-man's-dragon critters, yet haven't pulled one out again in 30+ years.

Add yours, please!

Any Demon/ Daemon. I know that's a very general answer but I love any Demons from any lore, including Warhammer 40k's beasties.

Back in White Box D&D days (Advanced? What's that?) I got the display card from a $.25 USD vending machine that sold gooey rubber "monsters".
I swear that half of GG's monster illustrations came from those disgusting slimy things.
Used them, so I guess they don't count.

"Monsters, Monsters" (an offshoot of "Tunnels & Trolls") had the Shadowjack, based on a concept by Roger Zelazny. This was a sort of "wizard gone bad" who could become one with any shadow (healing himself in the process) and while in this incorporeal form could jump from shadow to any connected shadow. Always thought it was a cool concept, but never got around to using it in any game.

Huge tunneling worms of any sort. Love the concept but never used one in a game.

I don't think I ever fought a Lich. Even dragons were very rare. Most of the high level monsters are character killers. My party once fought one of the greater devils, forget which one, but as soon as we recognized what we were confronting, the few characters who had psionics used it. We got some lucky rolls and the devil teleported himself out before any actual melee or spell attacks could be made. High level encounters got too complicated.

Never used a dragon. :-(

Chimaera. I used to have nightmares about the chimaera. Well, that one time I did, anyway.

I have a lead chimaera from the 1970s in a box somewhere. Maybe I should run a fantasy game and finally put him/her/it to use.

Tarrasque

Cthulhu. Game over.

So many, rust monster, carrion crawler, slime and molds, and the hydra. Thing is I had all of them painted up and ready to go back in the day.

Underused that I actually used once – leprechaun. It was with a very experienced party they captured the little and they used up their 3 wishes. The leprechaun then did the old flattering thing about why they should get another wish. When they took it all their original wishes were undone and, as is said in the monster manual, the leprechaun laughs madly and disappears. Well I didn't disappear, but the laughing was not role playing at all.

Tsukumogami link – possessed common objects. I've always wanted to either run or play against a cadre of them. You'd need a strong mystery/horror roleplay undercurrent, not just hack and slash.

Related – Moorcock's Black Blade link – Again, this is much more than a magic item. It's a celestial force. And it is not pleasant.

Thanks to etotheipi, I now want to see a movie in which a master of the art of Naked/Kill (from Shibumi, by Trevanian) has to deal with tsukumogami.

Landshark/Bulette. A shark on land – way cool. But as far as I know nobody makes a figure.

I just bought a pack of Mindflayers – not that they are useful as such but I may draft them in as vampires in Dracula's America. I just love the whole octopoid monster vibe. And I'm really trying to avoid War of the Worlds and Cthulhu.