20 The Proving GroundsD&D 5.5 · DPR Lab

The Proving Grounds

D&D 5.5 · DPR Lab

Test your build before you commit.

Ever fall in love with a character concept — then get to the table and find it just doesn't perform? The Proving Grounds shows you realistic expected damage under real play conditions: a full adventuring day, real AC, and choices that account for staying alive — not theoretical maximums you'll never reproduce.

Live now: all martial classes on the 2024 ruleset (PHB). Half-casters cover the most common builds; full casters, Artificer, and expansion subclasses are in progress.

Tool

DPR Calculator

Pick a class, subclass, weapon, and feats — watch your damage update live across the levels that matter (7, 11, 15, 20). Compare builds side by side. No setup, no prerequisites.

Open the calculator
Catalog

Build Finder

Browse builds that are known to work — not just on paper, but at an actual table, accounting for survivability and real play. See exactly what each one is expected to do at every tier.

Browse the builds

Why the numbers are different here

When a YouTuber says a build does X damage, they usually mean under ideal, cherry-picked conditions. Optimizer spreadsheets are accurate but assume you already know how to drive them. The Proving Grounds sits in the gap: accessible enough for anyone, honest about what you'll actually get. Every number is checked against an authoritative math model before it ships.

Go deeper

The calculator and Build Finder are free, always. Patrons get level-by-level build breakdowns — the reasoning behind every choice — plus early access to new subclasses and personal build requests.

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