Stop Looking for New Monsters
Every time a new book full of exciting and new monsters comes out, I convince myself I need it.
My players have fought goblins, they've fought orcs, they've fought skeletons, dragons and wolves. Surely, I need something they've never seen before.
Then I think back to the encounters my groups still talk about years later, most of them came straight from the Monster Manual.
One of my favourites was a troll, and I leaned into every childhood story I could remember about trolls. The party found it sitting beneath an old bridge, fishing. It barely looked up when they arrived. They expected a fight, but the troll was far more interested in catching dinner than swinging a club. Twenty minutes later they'd traded supplies for directions, shared a meal and continued on their way. Nobody remembers its AC, nobody remembers how many hit points it had. Everyone remembers the troll. (And from memory I think I named it Ned... Sean, feel free to correct me if I've got that wrong. It might have been Ted.)
That's because memorable encounters aren't about finding new monsters. They're about giving familiar monsters a reason to exist.
Take goblins. Too often they're just waiting in a cave for the party to kick the door in. But why? I've always found goblins work best when they have a problem of their own. A starving tribe behaves very differently from one preparing for war, and a clan protecting an ancient shrine isn't going to react like a bunch of roadside bandits. The stat block never changes, but the encounter does.
The same goes for dragons. Somewhere along the way, dragons became flying bags of hit points sitting on piles of gold. That never made much sense to me. These are ancient, intelligent creatures. Surely, they've developed hobbies over the centuries. (I'm a big believer in hobbies. Did you know competitive duck herding is actually a thing?)
Maybe your dragon collects stories instead of treasure, spends its time arguing philosophy, or is determined to prove historians wrong about some forgotten empire.
Your players won't remember how many hit points it had, they’ll remember the dragon.
That's true of almost every monster. Instead of asking, "How do I make this encounter harder?" ask yourself, "What is this creature doing today?"
That one question changes everything. The party might interrupt a hunt. They might stumble into a funeral. They might discover a monster protecting its family instead of guarding treasure.
Sometimes the result is combat. Sometimes it isn't. Either way, the encounter feels more believable because the world doesn't revolve around the players.
Monsters aren't sitting in some wandering monster waiting room, hoping adventurers turn up, they have lives of their own. They're hunting, travelling, arguing, eating, sleeping, protecting territory, raising young or simply trying to survive, just like everyone else in your world.
The next time you're planning a session, don't start by looking for a new monster. Open the Monster Manual, pick something you've used a dozen times before, and spend five minutes thinking about why it's there.
You might find you don't need a new monster after all.
