BattleCast encounter test
Purple Worm vs Level 4 Party
A purple worm is a huge solo monster that tests whether heroes can keep a dangerous body from choosing its victim. Bite control, poison burst, and swallow pressure make the target order matter.
Quick DM take
Use this as a monster-sized survivability check. A level 4 party can bring enough actions to threaten the worm, but the bite, poison, and swallow pressure can turn one bad target order into a crisis.
Baseline Monte Carlo result
Across 1,000 simulated battles from this starting layout, Purple Worm had the higher win rate. Purple Worm won 72.2%, Level 4 party won 27.8%, draws were 0.0%, and the average fight lasted 10.1 rounds.
What this encounter tests
This setup tests single-target rescue under heavy damage. The worm may not have complex spell choices, but it can turn one hero into the whole party problem.
The larger grid gives the party room to maneuver while still making the worm fast enough to force contact.
What to watch in the simulation
Watch who gets bitten first. If a high-value caster gets controlled, the party may spend its best turns stabilizing instead of attacking.
Also watch poison damage from Tail Stinger. The fight often turns on whether a hero can survive the burst long enough for healing to matter.
How to tune it at the table
Tune the worm by changing space and target access.
- Easier: give the party more room and obvious ranged lanes.
- Harder: start the worm closer or put the party in a tighter formation.
- More cinematic: let the worm retreat underground at low HP if you want a survival scene rather than a kill race.
Try another matchup
- Young Green Dragon vs Level 5 Party - A breath-weapon and flight benchmark for the start of tier-two play.
- Hydra vs Level 4 Party - A multiattack endurance test that punishes low damage and poor focus fire.
- Troll vs Level 4 Party - A regeneration benchmark for whether the party can end a fight decisively.