The Bulette (or Landshark)
From Dungeons and Dragons: Monster Manual I, the Bulette was a magical hybrid born from a mad wizard’s dream. As a DM, I rarely used the landshark. It was a novelty creature making rare appearances. Calling a break to the action while a dorsal fin sticks out the earth like a B-movie just wasn’t in my script.
“… cross breeding of a snapping turtle and armadillo with infusions of demons’ ichor … feeding on horses, men, and most other flesh,”
But the Bulette did make appearances in low-level adventures. It struck fear in characters otherwise cocky. It reminded them the world was a dangerous place. And unfair.
Important facts: The Bulette had three attacks per turn, including a devastating 4-48!