diff --git a/packs/gatewalkers-bestiary/the-looksee-man.json b/packs/gatewalkers-bestiary/the-looksee-man.json
index c968d09c230..d880acd178c 100644
--- a/packs/gatewalkers-bestiary/the-looksee-man.json
+++ b/packs/gatewalkers-bestiary/the-looksee-man.json
@@ -1390,7 +1390,23 @@
                     "remaster": false,
                     "title": ""
                 },
-                "rules": [],
+                "rules": [
+                    {
+                        "domain": "all",
+                        "key": "RollOption",
+                        "option": "shadow-stride",
+                        "toggleable": true
+                    },
+                    {
+                        "key": "FlatModifier",
+                        "predicate": [
+                            "shadow-stride"
+                        ],
+                        "selector": "land-speed",
+                        "type": "status",
+                        "value": 10
+                    }
+                ],
                 "slug": null,
                 "traits": {
                     "rarity": "common",
diff --git a/packs/pathfinder-bestiary-2/fetchling-scout.json b/packs/pathfinder-bestiary-2/fetchling-scout.json
index 0af387a7e4f..21c39e53a4b 100644
--- a/packs/pathfinder-bestiary-2/fetchling-scout.json
+++ b/packs/pathfinder-bestiary-2/fetchling-scout.json
@@ -406,14 +406,30 @@
                 },
                 "category": "offensive",
                 "description": {
-                    "value": "<p><strong>Requirements</strong> The fetchling is in dim light</p>\n<hr />\n<p><strong>Effect</strong> The fetchling Strides. They have a +10-foot status bonus to their Speed during this Stride. The DC from shadow blending increases to 11 during this Stride, and the fetchling remains @UUID[Compendium.pf2e.conditionitems.Item.Concealed] by dim light until the end of the movement, even if they leave dim light during the Stride.</p>"
+                    "value": "<p><strong>Requirements</strong> The fetchling is in dim light</p>\n<hr />\n<p><strong>Effect</strong> The fetchling Strides. They have a +10-foot status bonus to their Speed during this Stride. The DC from shadow blending increases to @Check[flat|dc:11] during this Stride, and the fetchling remains @UUID[Compendium.pf2e.conditionitems.Item.Concealed] by dim light until the end of the movement, even if they leave dim light during the Stride.</p>"
                 },
                 "publication": {
                     "license": "OGL",
                     "remaster": false,
                     "title": ""
                 },
-                "rules": [],
+                "rules": [
+                    {
+                        "domain": "all",
+                        "key": "RollOption",
+                        "option": "shadow-stride",
+                        "toggleable": true
+                    },
+                    {
+                        "key": "FlatModifier",
+                        "predicate": [
+                            "shadow-stride"
+                        ],
+                        "selector": "land-speed",
+                        "type": "status",
+                        "value": 10
+                    }
+                ],
                 "slug": null,
                 "traits": {
                     "rarity": "common",
diff --git a/packs/pfs-season-3-bestiary/onyx-alliance-commander.json b/packs/pfs-season-3-bestiary/onyx-alliance-commander.json
index aec4d5ac9a1..fa5803dbb21 100644
--- a/packs/pfs-season-3-bestiary/onyx-alliance-commander.json
+++ b/packs/pfs-season-3-bestiary/onyx-alliance-commander.json
@@ -523,14 +523,30 @@
                 },
                 "category": "offensive",
                 "description": {
-                    "value": "<p><strong>Requirements</strong> The commander is in dim light</p>\n<hr />\n<p><strong>Effect</strong> The commander Strides. They have a +10-foot status bonus to their Speed during this Stride. The DC from shadow blending increases to 11 during this Stride, and the commander remains concealed by dim light until the end of the movement, even if they leave dim light during the Stride.</p>"
+                    "value": "<p><strong>Requirements</strong> The commander is in dim light</p>\n<hr />\n<p><strong>Effect</strong> The commander Strides. They have a +10-foot status bonus to their Speed during this Stride. The DC from shadow blending increases to @Check[flat|dc:11] during this Stride, and the commander remains @UUID[Compendium.pf2e.conditionitems.Item.Concealed] by dim light until the end of the movement, even if they leave dim light during the Stride.</p>"
                 },
                 "publication": {
                     "license": "OGL",
                     "remaster": false,
                     "title": ""
                 },
-                "rules": [],
+                "rules": [
+                    {
+                        "domain": "all",
+                        "key": "RollOption",
+                        "option": "shadow-stride",
+                        "toggleable": true
+                    },
+                    {
+                        "key": "FlatModifier",
+                        "predicate": [
+                            "shadow-stride"
+                        ],
+                        "selector": "land-speed",
+                        "type": "status",
+                        "value": 10
+                    }
+                ],
                 "slug": null,
                 "traits": {
                     "rarity": "common",
diff --git a/packs/pfs-season-3-bestiary/onyx-alliance-officer.json b/packs/pfs-season-3-bestiary/onyx-alliance-officer.json
index 23700d67b4f..c607c6271f4 100644
--- a/packs/pfs-season-3-bestiary/onyx-alliance-officer.json
+++ b/packs/pfs-season-3-bestiary/onyx-alliance-officer.json
@@ -491,14 +491,30 @@
                 },
                 "category": "offensive",
                 "description": {
-                    "value": "<p><strong>Requirements</strong> The officer is in dim light</p>\n<hr />/n<p><strong>Effect</strong> The officer Strides. They have a +10-foot status bonus to their Speed during this Stride. The DC from shadow blending increases to 11 during this Stride, and the officer remains concealed by dim light until the end of the movement, even if they leave dim light during the Stride.</p>"
+                    "value": "<p><strong>Requirements</strong> The officer is in dim light</p>\n<hr />/n<p><strong>Effect</strong> The officer Strides. They have a +10-foot status bonus to their Speed during this Stride. The DC from shadow blending increases to @Check[flat|dc:11] during this Stride, and the officer remains @UUID[Compendium.pf2e.conditionitems.Item.Concealed] by dim light until the end of the movement, even if they leave dim light during the Stride.</p>"
                 },
                 "publication": {
                     "license": "OGL",
                     "remaster": false,
                     "title": ""
                 },
-                "rules": [],
+                "rules": [
+                    {
+                        "domain": "all",
+                        "key": "RollOption",
+                        "option": "shadow-stride",
+                        "toggleable": true
+                    },
+                    {
+                        "key": "FlatModifier",
+                        "predicate": [
+                            "shadow-stride"
+                        ],
+                        "selector": "land-speed",
+                        "type": "status",
+                        "value": 10
+                    }
+                ],
                 "slug": null,
                 "traits": {
                     "rarity": "common",
diff --git a/packs/pfs-season-3-bestiary/onyx-alliance-scout.json b/packs/pfs-season-3-bestiary/onyx-alliance-scout.json
index db5930b3395..62511b1ed04 100644
--- a/packs/pfs-season-3-bestiary/onyx-alliance-scout.json
+++ b/packs/pfs-season-3-bestiary/onyx-alliance-scout.json
@@ -411,14 +411,30 @@
                 },
                 "category": "offensive",
                 "description": {
-                    "value": "<p><strong>Requirements</strong> The fetchling is in dim light</p>\n<hr />\n<p><strong>Effect</strong> The fetchling Strides. They have a +10-foot status bonus to their Speed during this Stride. The DC from shadow blending increases to 11 during this Stride, and the fetchling remains @UUID[Compendium.pf2e.conditionitems.Item.Concealed] by dim light until the end of the movement, even if they leave dim light during the Stride.</p>"
+                    "value": "<p><strong>Requirements</strong> The fetchling is in dim light</p>\n<hr />\n<p><strong>Effect</strong> The fetchling Strides. They have a +10-foot status bonus to their Speed during this Stride. The DC from shadow blending increases to @Check[flat|dc:11] during this Stride, and the fetchling remains @UUID[Compendium.pf2e.conditionitems.Item.Concealed] by dim light until the end of the movement, even if they leave dim light during the Stride.</p>"
                 },
                 "publication": {
                     "license": "OGL",
                     "remaster": false,
                     "title": ""
                 },
-                "rules": [],
+                "rules": [
+                    {
+                        "domain": "all",
+                        "key": "RollOption",
+                        "option": "shadow-stride",
+                        "toggleable": true
+                    },
+                    {
+                        "key": "FlatModifier",
+                        "predicate": [
+                            "shadow-stride"
+                        ],
+                        "selector": "land-speed",
+                        "type": "status",
+                        "value": 10
+                    }
+                ],
                 "slug": null,
                 "traits": {
                     "rarity": "common",
diff --git a/packs/pfs-season-3-bestiary/veteran-onyx-alliance-scout.json b/packs/pfs-season-3-bestiary/veteran-onyx-alliance-scout.json
index b17a9b7447c..84f1e2fa59e 100644
--- a/packs/pfs-season-3-bestiary/veteran-onyx-alliance-scout.json
+++ b/packs/pfs-season-3-bestiary/veteran-onyx-alliance-scout.json
@@ -411,14 +411,30 @@
                 },
                 "category": "offensive",
                 "description": {
-                    "value": "<p><strong>Requirements</strong> The fetchling is in dim light</p>\n<hr />\n<p><strong>Effect</strong> The fetchling Strides. They have a +10-foot status bonus to their Speed during this Stride. The DC from shadow blending increases to 11 during this Stride, and the fetchling remains @UUID[Compendium.pf2e.conditionitems.Item.Concealed] by dim light until the end of the movement, even if they leave dim light during the Stride.</p>"
+                    "value": "<p><strong>Requirements</strong> The fetchling is in dim light</p>\n<hr />\n<p><strong>Effect</strong> The fetchling Strides. They have a +10-foot status bonus to their Speed during this Stride. The DC from shadow blending increases to @Check[flat|dc:11] during this Stride, and the fetchling remains @UUID[Compendium.pf2e.conditionitems.Item.Concealed] by dim light until the end of the movement, even if they leave dim light during the Stride.</p>"
                 },
                 "publication": {
                     "license": "OGL",
                     "remaster": false,
                     "title": ""
                 },
-                "rules": [],
+                "rules": [
+                    {
+                        "domain": "all",
+                        "key": "RollOption",
+                        "option": "shadow-stride",
+                        "toggleable": true
+                    },
+                    {
+                        "key": "FlatModifier",
+                        "predicate": [
+                            "shadow-stride"
+                        ],
+                        "selector": "land-speed",
+                        "type": "status",
+                        "value": 10
+                    }
+                ],
                 "slug": null,
                 "traits": {
                     "rarity": "common",