Critical Role Reveals Brutal New D&D House Rules


Brennan Lee Mulligan and Matt Mercer preside over the Soldiers table in an official Critical Role Campaign 4 promotional graphic.
Graphic: Polygon/Images: Critical Role

Early in Campaign 4, Critical Role has already proven its commitment to mechanical innovation, frequently altering core combat systems to better serve the narrative. During the eighth episode, “Fanged Revenge,” Dungeon Master Brennan Lee Mulligan introduced a high-stakes homebrew system known as “Desperate Measures.” These rules become accessible once a character is “bloodied”—the classic RPG term for falling to half of their maximum hit points or lower.

<p>Initial glimpses of the system revealed a tactical trade-off for the fallen: a player at 0 HP who has marked one successful death save (and zero failures) can choose to either stabilize automatically or grant Heroic Inspiration—allowing a d20 reroll—to a teammate. However, the full breadth of these lethal options remained a mystery until Episode 10.</p>

<p>In "Blood for Blood," a grueling combat encounter pushed the "Soldiers" table to their limits, prompting Mulligan to detail the escalating tiers of the Desperate Measures mechanic.</p>

<p>[<strong>Ed. note:</strong> The following contains light spoilers for <em>Critical Role</em> Campaign 4, Episode 10.]</p>

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                <img width="1650" height="928" loading="lazy" decoding="async" alt="Brennan Lee Mulligan, Travis Willingham, Laura Bailey, Robbie Daymond, Whitney Moore, and Sam Riegel during the intense combat of Episode 10." data-img-url="https://static0.polygonimages.com/wordpress/wp-content/uploads/2025/12/critical-role-campaign-4-ep-10-1.jpg?q=49&amp;fit=crop&amp;w=825&amp;dpr=2" src="https://static0.polygonimages.com/wordpress/wp-content/uploads/2025/12/critical-role-campaign-4-ep-10-1.jpg?q=49&amp;fit=crop&amp;w=825&amp;dpr=2" class="img-brightness-opt-out">
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<p>While Campaign 4 has already featured visceral skirmishes, Episode 10 dialed the tension to a fever pitch. Exploring the subterranean reaches of the castle in Tybry’s Lea, the party was quickly overwhelmed. Amidst a flurry of spears, arcane spells, and the petrifying gaze of Basilisks, the cast—Travis Willingham, Laura Bailey, Robbie Daymond, Whitney Moore, and Sam Riegel—struggled to maintain their footing.</p>

<p>When a particularly devastating blow left one hero bloodied, the table fell silent as they considered their options. Instead of playing it safe, the player chose to activate one of the most aggressive Desperate Measures available.</p>

<p>By voluntarily accepting two death saving throw failures while still standing, the character gained the ability to inflict maximum damage on their next successful attack. It was a massive power spike, but it placed the character in a precarious position: with negligible health and two strikes already against them, any further damage could mean an immediate and permanent exit from the campaign.</p>

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                <img width="1650" height="928" loading="lazy" decoding="async" alt="Dungeon Master Brennan Lee Mulligan explains the high-stakes house rules during a Critical Role broadcast." data-img-url="https://static0.polygonimages.com/wordpress/wp-content/uploads/2025/12/critical-role-cooldown-brennan-lee-mulligan.jpg?q=49&amp;fit=crop&amp;w=825&amp;dpr=2" src="https://static0.polygonimages.com/wordpress/wp-content/uploads/2025/12/critical-role-cooldown-brennan-lee-mulligan.jpg?q=49&amp;fit=crop&amp;w=825&amp;dpr=2" class="img-brightness-opt-out">
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<p>Mulligan also clarified the other tiers of Desperate Measures. Sacrificing just one death saving throw failure allows a player to immediately use their Dash or Disengage actions, or receive a flat +5 bonus to any d20 roll.</p>

<p>The most drastic option involves marking off all three death saving throw failures at once. This "nuclear option" allows a player to immediately take an extra Action (Attack or Magic) or instantly recover an expended spell slot up to the fifth level.</p>

<p>This tier represents the ultimate high-risk, high-reward gambit—the kind of dramatic turning point that <a href="https://www.polygon.com/dnd-dungeons-dragons/" target="_blank">Dungeons &amp; Dragons</a> thrives on. It provides a path to victory in impossible circumstances, but the cost is absolute.</p>

<p>Accepting three failures means that if the character drops to 0 HP, they die instantly without the chance to roll for survival. This is strikingly similar to the <a href="https://daggerheart.org/core-mechanics/death" target="_blank">“Blaze of Glory”</a> mechanic in <a href="https://www.polygon.com/acquisitions-incorporated-leaving-dnd-for-daggerheart-reboot/" target="_blank"><em>Daggerheart</em></a>, where a hero can opt for one final, guaranteed critical success before passing into legend.</p>

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                <img width="1650" height="928" loading="lazy" decoding="async" alt="Travis Willingham and Laura Bailey react with shock to the unfolding events of Episode 10." data-img-url="https://static0.polygonimages.com/wordpress/wp-content/uploads/2025/12/critical-role-campaign-4-episode-10.jpg?q=49&amp;fit=crop&amp;w=825&amp;dpr=2" src="https://static0.polygonimages.com/wordpress/wp-content/uploads/2025/12/critical-role-campaign-4-episode-10.jpg?q=49&amp;fit=crop&amp;w=825&amp;dpr=2" class="img-brightness-opt-out">
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<p>The stakes are further amplified by the world-building of Aramán. Unlike previous settings, this world is not level-scaled; players can easily encounter threats far beyond their current capabilities. Compounding this danger is the fact that enemies have access to Desperate Measures as well. Furthermore, essential safety nets like *Revivify* have been rendered <a href="https://www.polygon.com/critical-role-campaign-4-just-made-these-essential-dd-spells-impossible-to-use/" target="_blank">virtually impossible to cast</a>, making every brush with death a potentially permanent one.</p>

<p>By implementing these homebrew systems, *Critical Role* is stripping away the complacency that often comes with high-level play. These mechanics ensure that combat remains a volatile, narrative-driven experience where every choice carries a heavy cost, keeping the audience—and the players—on the edge of their seats throughout Campaign 4.</p>
 

Source: Polygon

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