diff --git a/src/cardFilter.tsx b/src/cardFilter.tsx
index 3d12dde..30f4190 100644
--- a/src/cardFilter.tsx
+++ b/src/cardFilter.tsx
@@ -6,6 +6,7 @@ import {
   CardCriteria,
   CardCriteriaFields,
   ColorToggles,
+  EMPTY_CRITERIA,
   TagInput,
   applyCardCriteria,
   criteriaActive,
@@ -95,6 +96,8 @@ export interface CardFilterState {
   filter: LibraryFilter;
   /** Whether anything is filtered on at all. */
   active: boolean;
+  /** Clear every field and criterion. */
+  reset: () => void;
 }
 
 /** State for a {@link CardFilterPanel}. `criteriaKey` persists the criteria
@@ -108,7 +111,11 @@ export function useCardFilter(criteriaKey: string): CardFilterState {
   const json = JSON.stringify(toFilter(fields, criteria));
   const filter = useMemo(() => JSON.parse(json) as LibraryFilter, [json]);
   const active = fieldsActive(fields) || criteriaActive(criteria);
-  return { fields, patch, criteria, patchCriteria, filter, active };
+  const reset = () => {
+    setFields(EMPTY_FIELDS);
+    patchCriteria(EMPTY_CRITERIA);
+  };
+  return { fields, patch, criteria, patchCriteria, filter, active, reset };
 }
 
 /**
@@ -121,6 +128,9 @@ export function CardFilterPanel({
   facets,
   decks,
   hideNotOwned,
+  hideName,
+  hideInDeck,
+  alwaysExpanded,
 }: {
   state: CardFilterState;
   /** Suggestions for the type/subtype/keyword inputs. */
@@ -129,6 +139,13 @@ export function CardFilterPanel({
   decks: Deck[];
   /** Omit the "Not owned" toggle — for the Library, which only shows owned cards. */
   hideNotOwned?: boolean;
+  /** Omit "Name contains" — for a caller with its own name box. */
+  hideName?: boolean;
+  /** Omit "In deck" — for a caller already scoped to one deck. */
+  hideInDeck?: boolean;
+  /** Show every field at every width, with no "More filters" toggle — for a
+   *  popup, which has the room. */
+  alwaysExpanded?: boolean;
 }) {
   const { fields: f, patch } = state;
   // Collapsed by default (relevant on narrow/mobile screens only).
@@ -136,11 +153,13 @@ export function CardFilterPanel({
   return (
     <>
       <div className="filters">
-        <div className="field">
-          <label>Name contains</label>
-          <input value={f.text} onChange={(e) => patch({ text: e.target.value })} placeholder="e.g. bolt" />
-        </div>
-        <div className={`filters-more ${expanded ? "expanded" : ""}`}>
+        {!hideName && (
+          <div className="field">
+            <label>Name contains</label>
+            <input value={f.text} onChange={(e) => patch({ text: e.target.value })} placeholder="e.g. bolt" />
+          </div>
+        )}
+        <div className={`filters-more ${expanded || alwaysExpanded ? "expanded" : ""}`}>
           <div className="field">
             <label>Playable in commander (color identity ⊆)</label>
             <ColorToggles
@@ -208,20 +227,22 @@ export function CardFilterPanel({
               placeholder="Flying…"
             />
           </div>
-          <div className="field">
-            <label>In deck</label>
-            <select
-              value={f.inDeck}
-              onChange={(e) => patch({ inDeck: e.target.value === "" ? "" : Number(e.target.value) })}
-            >
-              <option value="">Any</option>
-              {decks.map((d) => (
-                <option key={d.id} value={d.id}>
-                  {d.name}
-                </option>
-              ))}
-            </select>
-          </div>
+          {!hideInDeck && (
+            <div className="field">
+              <label>In deck</label>
+              <select
+                value={f.inDeck}
+                onChange={(e) => patch({ inDeck: e.target.value === "" ? "" : Number(e.target.value) })}
+              >
+                <option value="">Any</option>
+                {decks.map((d) => (
+                  <option key={d.id} value={d.id}>
+                    {d.name}
+                  </option>
+                ))}
+              </select>
+            </div>
+          )}
           <div className="field">
             <label>Location</label>
             <input
@@ -241,9 +262,11 @@ export function CardFilterPanel({
           <CardCriteriaFields value={state.criteria} onChange={state.patchCriteria} hideNotOwned={hideNotOwned} />
         </div>
       </div>
-      <button className="filters-toggle" onClick={() => setExpanded((v) => !v)}>
-        {expanded ? "▴ Fewer filters" : "▾ More filters"}
-      </button>
+      {!alwaysExpanded && (
+        <button className="filters-toggle" onClick={() => setExpanded((v) => !v)}>
+          {expanded ? "▴ Fewer filters" : "▾ More filters"}
+        </button>
+      )}
     </>
   );
 }
diff --git a/src/components.tsx b/src/components.tsx
index 8f1c10d..35fbaf9 100644
--- a/src/components.tsx
+++ b/src/components.tsx
@@ -119,6 +119,7 @@ const ICON_ARROW_UP = icon(
     <polyline points="5 12 12 5 19 12" />
   </>,
 );
+const ICON_FILTER = icon(<polygon points="22 3 2 3 10 12.46 10 19 14 21 14 12.46 22 3" />);
 const ICON_PLUS = icon(
   <>
     <line x1="12" y1="5" x2="12" y2="19" />
@@ -201,6 +202,7 @@ export const Icons = {
   check: ICON_CHECK,
   arrowLeft: ICON_ARROW_LEFT,
   arrowUp: ICON_ARROW_UP,
+  filter: ICON_FILTER,
   plus: ICON_PLUS,
   more: ICON_MORE,
   image: ICON_IMAGE,
diff --git a/src/styles.css b/src/styles.css
index a1fd0b8..6238cba 100644
--- a/src/styles.css
+++ b/src/styles.css
@@ -3178,18 +3178,25 @@ button.pull-action {
 .section-nav-tabs button,
 .section-nav-jump > button {
   height: 32px;
-  padding: 0 10px;
+  padding: 0 8px;
 }
-.section-nav .section-nav-top {
+.section-nav .section-nav-top,
+.section-nav .section-nav-adv {
   flex-shrink: 0;
   justify-content: center;
   width: 32px;
   padding: 0;
 }
-.section-nav-top svg {
+.section-nav-top svg,
+.section-nav-adv svg {
   width: 16px;
   height: 16px;
 }
+.section-nav .section-nav-adv.active {
+  background: var(--accent-subtle);
+  border-color: var(--accent-glow);
+  color: var(--accent-hover);
+}
 .section-nav-tabs {
   display: flex;
   gap: var(--space-1);
@@ -3236,12 +3243,13 @@ button.pull-action {
   box-sizing: border-box;
   flex: 1;
   margin-left: auto;
-  min-width: 140px;
+  min-width: 120px;
   max-width: 240px;
 }
 /* Below this the longest tab set (Available / In other decks / Not owned /
-   Maybeboard, with counts) plus a minimum-width filter no longer fits. */
-@container (max-width: 740px) {
+   Maybeboard, with counts) plus ↑, a minimum-width filter and the
+   advanced-filter button no longer fits. */
+@container (max-width: 730px) {
   .section-nav-tabs {
     display: none;
   }
diff --git a/src/views/DeckView.tsx b/src/views/DeckView.tsx
index 3c33043..fc5efe8 100644
--- a/src/views/DeckView.tsx
+++ b/src/views/DeckView.tsx
@@ -11,8 +11,10 @@ import {
   DeckStatus,
   isPhysical,
   libraryKey,
+  LibraryFacets,
   PreviewContext,
 } from "../api";
+import { CardFilterPanel, CardFilterState, NO_FACETS, useCardFilter } from "../cardFilter";
 import {
   CardSearchBox,
   CardThumb,
@@ -231,6 +233,8 @@ function SectionNav({
   onTop,
   filter,
   onFilterChange,
+  onAdvanced,
+  advancedActive,
 }: {
   sections: NavSection[];
   active: string;
@@ -238,6 +242,9 @@ function SectionNav({
   onTop: () => void;
   filter: string;
   onFilterChange: (q: string) => void;
+  onAdvanced: () => void;
+  /** An advanced filter is narrowing the cards. */
+  advancedActive: boolean;
 }) {
   const [open, setOpen] = useState(false);
   const jumpRef = useRef<HTMLDivElement>(null);
@@ -305,10 +312,56 @@ function SectionNav({
         onChange={(e) => onFilterChange(e.target.value)}
         placeholder="Filter cards in deck…"
       />
+      <button
+        className={advancedActive ? "section-nav-adv active" : "section-nav-adv"}
+        onClick={onAdvanced}
+        title={advancedActive ? "Advanced filter (on)" : "Advanced filter"}
+        aria-label={advancedActive ? "Advanced filter (on)" : "Advanced filter"}
+      >
+        {Icons.filter}
+      </button>
     </div>
   );
 }
 
+/** The advanced filter as a popup, so it doesn't take over the builder.
+ *  Changes apply as they're made; `matched` is null until a filter is on. */
+function AdvancedFilterDialog({
+  state,
+  matched,
+  total,
+  error,
+  onClose,
+}: {
+  state: CardFilterState;
+  matched: number | null;
+  total: number;
+  error: string | null;
+  onClose: () => void;
+}) {
+  const [facets, setFacets] = useState<LibraryFacets>(NO_FACETS);
+  useEffect(() => {
+    api.getReferenceFacets().then(setFacets).catch(() => {});
+  }, []);
+  return (
+    <DialogFrame title="Filter deck cards" onCancel={onClose} wide>
+      <CardFilterPanel state={state} facets={facets} decks={[]} hideName hideInDeck alwaysExpanded />
+      {error && <p className="sync-bad">{error}</p>}
+      <div className="dialog-actions">
+        <span className="muted" style={{ marginRight: "auto" }}>
+          {matched === null ? `All ${total} cards shown` : `${matched} of ${total} cards match`}
+        </span>
+        <button onClick={state.reset} disabled={!state.active}>
+          Clear filters
+        </button>
+        <button className="primary" onClick={onClose}>
+          Done
+        </button>
+      </div>
+    </DialogFrame>
+  );
+}
+
 /**
  * Deck editor. A deck's mainboard cards are split into two groups — "In your
  * library" (owned) and "Not owned" — each with its own search box and each
@@ -352,6 +405,12 @@ function DeckBuilder({
   const [sortDir, setSortDir] = usePersistedState<SortDir>("deck-sort-dir", "asc");
   const [combineSections, setCombineSections] = usePersistedState("deck-combine-sections", false);
   const [filterQuery, setFilterQuery] = useState("");
+  // The Library's full card filter, narrowing the sections to the deck cards
+  // it matches. Its criteria (rarity, price, …) persist like the Library's.
+  const advFilter = useCardFilter("deck-criteria");
+  const [advOpen, setAdvOpen] = useState(false);
+  const [advMatches, setAdvMatches] = useState<Set<string> | null>(null);
+  const [advError, setAdvError] = useState<string | null>(null);
 
   const [libQuery, setLibQuery] = useState("");
   const [libResults, setLibResults] = useState<CardRef[]>([]);
@@ -391,6 +450,38 @@ function DeckBuilder({
     loadContents();
   }, [loadContents]);
 
+  // Which of the deck's cards the advanced filter matches: the same search
+  // the Library runs, scoped to this deck (main board and maybeboard). Null
+  // when no filter is on, or the search failed, so nothing is hidden.
+  const contentIds = contents.map((e) => e.oracle_id).join(",");
+  useEffect(() => {
+    if (!advFilter.active) {
+      setAdvMatches(null);
+      setAdvError(null);
+      return;
+    }
+    let live = true;
+    const t = setTimeout(async () => {
+      try {
+        const cards = await api.searchReference(
+          { ...advFilter.filter, in_deck: deckId },
+          Math.max(1, contentIds.split(",").length),
+        );
+        if (!live) return;
+        setAdvMatches(new Set(cards.map((c) => c.oracle_id)));
+        setAdvError(null);
+      } catch (e) {
+        if (!live) return;
+        setAdvMatches(null);
+        setAdvError(String(e));
+      }
+    }, 150);
+    return () => {
+      live = false;
+      clearTimeout(t);
+    };
+  }, [advFilter.filter, advFilter.active, deckId, contentIds]);
+
   // Refetch on an external refresh signal without resetting the UI state
   // above (unlike a deck switch, this shouldn't clear the user's filter,
   // selection, or open sample hand). Skips the first render so it doesn't
@@ -770,6 +861,7 @@ function DeckBuilder({
   // filter only, distinct from the CardSearchBox boxes below (which search
   // the library/reference db to find NEW cards to add).
   function matchesFilter(e: DeckEntry): boolean {
+    if (advMatches && !advMatches.has(e.oracle_id)) return false;
     const q = fold(filterQuery.trim());
     if (!q) return true;
     return fold(e.name).includes(q) || fold(e.type_line).includes(q);
@@ -1343,6 +1435,8 @@ function DeckBuilder({
         onTop={jumpToTop}
         filter={filterQuery}
         onFilterChange={setFilterQuery}
+        onAdvanced={() => setAdvOpen(true)}
+        advancedActive={advFilter.active}
       />
 
       {selectedCards.size > 0 && (
@@ -1512,6 +1606,15 @@ function DeckBuilder({
         {cardsGroup(maybeboard)}
       </section>
 
+      {advOpen && (
+        <AdvancedFilterDialog
+          state={advFilter}
+          matched={advMatches?.size ?? null}
+          total={contents.length}
+          error={advError}
+          onClose={() => setAdvOpen(false)}
+        />
+      )}
       {handOpen && (
         <SampleHandModal
           hand={hand}