diff --git a/src/lib/components/collection/WeaponEditPane.svelte b/src/lib/components/collection/WeaponEditPane.svelte
index 1e91e251..999d5399 100644
--- a/src/lib/components/collection/WeaponEditPane.svelte
+++ b/src/lib/components/collection/WeaponEditPane.svelte
@@ -302,6 +302,7 @@
 						onChange={(bef) => {
 							befoulment = bef
 						}}
+						maxExorcismLevel={weaponData?.maxExorcismLevel}
 					/>
 				</div>
 			</DetailsSection>
diff --git a/src/lib/components/sidebar/EditWeaponSidebar.svelte b/src/lib/components/sidebar/EditWeaponSidebar.svelte
index f78a582a..13f1bd85 100644
--- a/src/lib/components/sidebar/EditWeaponSidebar.svelte
+++ b/src/lib/components/sidebar/EditWeaponSidebar.svelte
@@ -328,6 +328,7 @@
 						onChange={(bef) => {
 							befoulment = bef
 						}}
+						maxExorcismLevel={weaponData?.maxExorcismLevel}
 					/>
 				</div>
 			</DetailsSection>
diff --git a/src/lib/components/sidebar/edit/BefoulmentSelect.svelte b/src/lib/components/sidebar/edit/BefoulmentSelect.svelte
index 0fc3a02f..8c89236d 100644
--- a/src/lib/components/sidebar/edit/BefoulmentSelect.svelte
+++ b/src/lib/components/sidebar/edit/BefoulmentSelect.svelte
@@ -12,9 +12,11 @@
 		onChange?: (befoulment: Befoulment | null) => void
 		/** Language for display */
 		locale?: 'en' | 'ja'
+		/** Maximum exorcism level for this weapon (from weapon's maxExorcismLevel) */
+		maxExorcismLevel?: number | null
 	}
 
-	let { currentBefoulment = null, onChange, locale = 'en' }: Props = $props()
+	let { currentBefoulment = null, onChange, locale = 'en', maxExorcismLevel = null }: Props = $props()
 
 	const { befoulments, findBefoulment, isLoading } = useWeaponStatModifiers()
 
@@ -44,15 +46,14 @@
 		return items
 	})
 
-	// Exorcism level options (0-5)
-	const exorcismOptions: Array<{ value: number; label: string }> = [
-		{ value: 0, label: 'Level 0 (Full Effect)' },
-		{ value: 1, label: 'Level 1' },
-		{ value: 2, label: 'Level 2' },
-		{ value: 3, label: 'Level 3' },
-		{ value: 4, label: 'Level 4' },
-		{ value: 5, label: 'Level 5 (Fully Exorcised)' }
-	]
+	// Exorcism level options (0 to maxExorcismLevel, fallback to 5)
+	const exorcismOptions = $derived.by(() => {
+		const max = maxExorcismLevel ?? 5
+		return Array.from({ length: max + 1 }, (_, i) => ({
+			value: i,
+			label: `Level ${i}`
+		}))
+	})
 
 	// Get suffix for display
 	function getSuffix(modifier: WeaponStatModifier | undefined): string {
diff --git a/src/lib/components/ui/DetailItem.svelte b/src/lib/components/ui/DetailItem.svelte
index 1163f836..98c26059 100644
--- a/src/lib/components/ui/DetailItem.svelte
+++ b/src/lib/components/ui/DetailItem.svelte
@@ -28,7 +28,9 @@
 		onchange,
 		width,
 		linkUrl,
-		hasLinkButton = false
+		hasLinkButton = false,
+		min,
+		max
 	}: {
 		label: string
 		/** Secondary label displayed below the main label */
@@ -48,6 +50,10 @@
 		linkUrl?: string | null
 		/** Whether to show the link button (disabled when linkUrl is empty) */
 		hasLinkButton?: boolean
+		/** Minimum value for number inputs */
+		min?: number
+		/** Maximum value for number inputs */
+		max?: number
 	} = $props()
 
 	// For checkbox type, derive the checked state from value
@@ -110,6 +116,8 @@
 					contained={true}
 					{placeholder}
 					alignRight={true}
+					{min}
+					{max}
 				/>
 			{:else if type === 'date'}
 				<DatePicker bind:value={value as string | null} contained={true} {placeholder} />
diff --git a/src/lib/features/database/weapons/sections/WeaponStatsSection.svelte b/src/lib/features/database/weapons/sections/WeaponStatsSection.svelte
index ab2780bf..ee4cc5c4 100644
--- a/src/lib/features/database/weapons/sections/WeaponStatsSection.svelte
+++ b/src/lib/features/database/weapons/sections/WeaponStatsSection.svelte
@@ -193,6 +193,15 @@
 			type="number"
 			placeholder="0"
 		/>
+		<DetailItem
+			label="Max Exorcism Level"
+			sublabel="For befoulment weapons only"
+			bind:value={editData.maxExorcismLevel}
+			editable={true}
+			type="number"
+			placeholder="—"
+			min={1}
+		/>
 	{:else}
 		<DetailItem label="Max Level" value={weapon.maxLevel} />
 		{#if weapon.maxSkillLevel}
@@ -201,5 +210,8 @@
 		{#if weapon.maxAwakeningLevel}
 			<DetailItem label="Max Awakening Level" value={weapon.maxAwakeningLevel} />
 		{/if}
+		{#if weapon.maxExorcismLevel != null}
+			<DetailItem label="Max Exorcism Level" value={weapon.maxExorcismLevel} />
+		{/if}
 	{/if}
 </DetailsContainer>
diff --git a/src/lib/types/api/entities.ts b/src/lib/types/api/entities.ts
index 31047a8e..b5371d91 100644
--- a/src/lib/types/api/entities.ts
+++ b/src/lib/types/api/entities.ts
@@ -20,6 +20,7 @@ export interface Weapon {
   maxLevel: number
   maxSkillLevel: number
   maxAwakeningLevel: number
+  maxExorcismLevel?: number | null
   /** Weapon series - object with slug/name/flags */
   series: WeaponSeriesRef | null
   ax: boolean
diff --git a/src/routes/(app)/database/weapons/[granblueId]/edit/+page.svelte b/src/routes/(app)/database/weapons/[granblueId]/edit/+page.svelte
index 76dec8e3..fd83d041 100644
--- a/src/routes/(app)/database/weapons/[granblueId]/edit/+page.svelte
+++ b/src/routes/(app)/database/weapons/[granblueId]/edit/+page.svelte
@@ -87,6 +87,7 @@
 		maxLevel: 100,
 		maxSkillLevel: 10,
 		maxAwakeningLevel: 0,
+		maxExorcismLevel: null as number | null,
 		flb: false,
 		ulb: false,
 		transcendence: false,
@@ -134,6 +135,7 @@
 				maxLevel: weapon.maxLevel || 100,
 				maxSkillLevel: weapon.maxSkillLevel || 10,
 				maxAwakeningLevel: weapon.maxAwakeningLevel || 0,
+				maxExorcismLevel: weapon.maxExorcismLevel ?? null,
 				flb: weapon.uncap?.flb || false,
 				ulb: weapon.uncap?.ulb || false,
 				transcendence: weapon.uncap?.transcendence || false,
@@ -186,6 +188,7 @@
 				max_level: editData.maxLevel,
 				max_skill_level: editData.maxSkillLevel,
 				max_awakening_level: editData.maxAwakeningLevel,
+				max_exorcism_level: editData.maxExorcismLevel,
 				flb: editData.flb,
 				ulb: editData.ulb,
 				transcendence: editData.transcendence,
diff --git a/src/routes/(app)/database/weapons/import/+page.svelte b/src/routes/(app)/database/weapons/import/+page.svelte
index 23c8fa99..d4c8a8fe 100644
--- a/src/routes/(app)/database/weapons/import/+page.svelte
+++ b/src/routes/(app)/database/weapons/import/+page.svelte
@@ -121,6 +121,7 @@
 			maxLevel: suggestions?.maxLevel ?? 100,
 			maxSkillLevel: 10,
 			maxAwakeningLevel: 0,
+			maxExorcismLevel: null as number | null,
 			flb: suggestions?.flb ?? false,
 			ulb: suggestions?.ulb ?? false,
 			transcendence: suggestions?.transcendence ?? false,
@@ -281,6 +282,7 @@
 				max_level: formData.maxLevel,
 				max_skill_level: formData.maxSkillLevel,
 				max_awakening_level: formData.maxAwakeningLevel,
+				max_exorcism_level: formData.maxExorcismLevel,
 				flb: formData.flb,
 				ulb: formData.ulb,
 				transcendence: formData.transcendence,
diff --git a/src/routes/(app)/database/weapons/new/+page.svelte b/src/routes/(app)/database/weapons/new/+page.svelte
index 53bf4625..c4c3d192 100644
--- a/src/routes/(app)/database/weapons/new/+page.svelte
+++ b/src/routes/(app)/database/weapons/new/+page.svelte
@@ -75,6 +75,7 @@
 		maxLevel: 100,
 		maxSkillLevel: 10,
 		maxAwakeningLevel: 0,
+		maxExorcismLevel: null as number | null,
 
 		// Uncap
 		flb: false,
@@ -184,6 +185,7 @@
 				max_level: editData.maxLevel,
 				max_skill_level: editData.maxSkillLevel,
 				max_awakening_level: editData.maxAwakeningLevel,
+				max_exorcism_level: editData.maxExorcismLevel,
 
 				// Uncap
 				flb: editData.flb,