diff --git a/DB/Mounts/Legion.lua b/DB/Mounts/Legion.lua
index 52eb01e7..0be2b388 100644
--- a/DB/Mounts/Legion.lua
+++ b/DB/Mounts/Legion.lua
@@ -356,7 +356,11 @@ local legionMounts = {
 		chance = 100,
 		wasGuaranteed = true,
 		statisticId = { 10980 },
-		coords = { { m = 772, i = true } },
+		coords = { { m = CONSTANTS.UIMAPIDS.THE_NIGHTHOLD, i = true } },
+		lockoutDetails = {
+			mode = CONSTANTS.DEFEAT_DETECTION.MODE_AND,
+			{ encounterName = "Gul'dan", instanceDifficulties = { [CONSTANTS.INSTANCE_DIFFICULTIES.MYTHIC_RAID] = true } },
+		},
 	},
 	["Antoran Charhound"] = {
 		cat = CONSTANTS.ITEM_CATEGORIES.LEGION,
@@ -385,7 +389,14 @@ local legionMounts = {
 		wasGuaranteed = true,
 		blackMarket = true,
 		statisticId = { 11986 },
-		coords = { { m = 910, i = true } },
+		coords = { { m = CONSTANTS.UIMAPIDS.ANTORUS, i = true } },
+		lockoutDetails = {
+			mode = CONSTANTS.DEFEAT_DETECTION.MODE_AND,
+			{
+				encounterName = "Argus the Unmaker",
+				instanceDifficulties = { [CONSTANTS.INSTANCE_DIFFICULTIES.MYTHIC_RAID] = true },
+			},
+		},
 	},
 }
 
diff --git a/DB/SharedConstants.lua b/DB/SharedConstants.lua
index 6a744021..f7f4013f 100644
--- a/DB/SharedConstants.lua
+++ b/DB/SharedConstants.lua
@@ -59,9 +59,11 @@ C.UIMAPIDS = {
 	HIGHMOUNTAIN = 650,
 	SURAMAR = 680,
 	SKYHOLD = 695,
+	THE_NIGHTHOLD = 772,
 	KROKUUN = 830,
 	MACAREE = 882,
 	ANTORAN_WASTES = 885,
+	ANTORUS = 910,
 	-- Legion Instances
 	SEAT_OF_THE_TRIUMVIRATE = 903,
 	-- Battle for Azeroth Zones