diff --git a/db/re/item_db_equip.yml b/db/re/item_db_equip.yml
index 6f15e24c08b..2dedde49cbf 100644
--- a/db/re/item_db_equip.yml
+++ b/db/re/item_db_equip.yml
@@ -160173,6 +160173,9 @@ Body:
     Locations:
       Costume_Head_Mid: true
     ArmorLevel: 1
+    Trade:
+      NoMail: true
+      NoAuction: true
   - Id: 31852
     AegisName: C_WitchManteau
     Name: Costume Witch's Cloak
@@ -180295,6 +180298,30 @@ Body:
       NoAuction: true
     ArmorLevel: 1
     View: 2805
+  - Id: 401246
+    AegisName: aegis_401246
+    Name: Costume Fafnir Helm
+    Type: Armor
+    Locations:
+      Costume_Head_Top: true
+    ArmorLevel: 1
+    View: 2149
+  - Id: 401247
+    AegisName: aegis_401247
+    Name: Costume Wolf Rayet
+    Type: Armor
+    Locations:
+      Costume_Head_Top: true
+    ArmorLevel: 1
+    View: 2487
+  - Id: 401248
+    AegisName: C_Apprentice_Witch_Hat 
+    Name: Costume Apprentice Witch Hat    # !todo check english name
+    Type: Armor
+    Locations:
+      Costume_Head_Top: true
+    ArmorLevel: 1
+    View: 2814
   - Id: 410000
     AegisName: Resonate_Taego_J
     Name: Ancient Resonance
@@ -182663,6 +182690,11 @@ Body:
     Type: Armor
     Locations:
       Costume_Head_Mid: true
+    Trade:
+      NoSell: true
+      NoMail: true
+      NoAuction: true
+      NoGuildStorage: true
     ArmorLevel: 1
     View: 2363
   - Id: 410202
@@ -184815,6 +184847,14 @@ Body:
       Costume_Head_Mid: true
     ArmorLevel: 1
     View: 2795
+  - Id: 410582
+    AegisName: C_Nursing_Poring
+    Name: Costume Nursing Poring    # !todo check english name
+    Type: Armor
+    Locations:
+      Costume_Head_Mid: true
+    ArmorLevel: 1
+    View: 2817
   - Id: 420000
     AegisName: Isabella_Carrot
     Name: Isabella Carrot
@@ -187828,6 +187868,9 @@ Body:
     Type: Armor
     Locations:
       Costume_Head_Low: true
+    Trade:
+      NoDrop: true
+      NoSell: true
     ArmorLevel: 1
     Script: |
       hateffect HAT_EF_C_ANCIENT_RUNE,true;
@@ -188927,6 +188970,22 @@ Body:
       hateffect HAT_EF_C_CLB_GAT_DOC,true;
     UnEquipScript: |
       hateffect HAT_EF_C_CLB_GAT_DOC,false;
+  - Id: 420750
+    AegisName: C_Seyren_Hair
+    Name: Costume Seyren Hair    # !todo check english name
+    Type: Armor
+    Locations:
+      Costume_Head_Low: true
+    ArmorLevel: 1
+    View: 2815
+  - Id: 420751
+    AegisName: C_Magaleta_Hair
+    Name: Costume Magaleta Hair    # !todo check english name
+    Type: Armor
+    Locations:
+      Costume_Head_Low: true
+    ArmorLevel: 1
+    View: 2816
   - Id: 430001
     AegisName: C_Helm_Of_Ra
     Name: Costume Hat of the Sun God
@@ -218620,6 +218679,22 @@ Body:
       Costume_Garment: true
     ArmorLevel: 1
     View: 298
+  - Id: 480747
+    AegisName: C_Knights_Sword_Shield
+    Name: Costume Knights Sword Shield    # !todo check english name
+    Type: Armor
+    Locations:
+      Costume_Garment: true
+    ArmorLevel: 1
+    View: 300
+  - Id: 480748
+    AegisName: C_Doram_Paw_Hammer
+    Name: Costume Doram Paw Hammer    # !todo check english name
+    Type: Armor
+    Locations:
+      Costume_Garment: true
+    ArmorLevel: 1
+    View: 301
   - Id: 490004
     AegisName: Atker_Ring
     Name: Attacker Booster Ring
diff --git a/src/map/skills/merchant/advanceprotection.cpp b/src/map/skills/merchant/advanceprotection.cpp
index 875d58dc7cb..7918f38e9d0 100644
--- a/src/map/skills/merchant/advanceprotection.cpp
+++ b/src/map/skills/merchant/advanceprotection.cpp
@@ -9,13 +9,15 @@
 SkillAdvanceProtection::SkillAdvanceProtection() : StatusSkillImpl(BO_ADVANCE_PROTECTION) {
 }
 
-void SkillAdvanceProtection::castendNoDamageId(block_list *src, block_list *target, uint16 skill_lv, t_tick tick, int32& flag) const {
-	map_session_data* sd = BL_CAST(BL_PC, src);
+void SkillAdvanceProtection::castendNoDamageId(block_list* src, block_list* target, uint16 skill_lv, t_tick tick, int32& flag) const {
 	map_session_data* dstsd = BL_CAST(BL_PC, target);
 
-	// TODO : Logical error if casted by non-pc
-	if( sd && ( !dstsd || pc_checkequip( dstsd, EQP_SHADOW_GEAR ) < 0 ) ){
-		clif_skill_fail( *sd, getSkillId() );
+	if (dstsd == nullptr || pc_checkequip(dstsd, EQP_SHADOW_GEAR) < 0) {
+		if (map_session_data* sd = BL_CAST(BL_PC, src); sd != nullptr) {
+			clif_skill_fail(*sd, getSkillId());
+
+		}
+
 		// Don't consume item requirements
 		flag |= SKILL_NOCONSUME_REQ;
 		return;
diff --git a/src/map/skills/merchant/advanceprotection.hpp b/src/map/skills/merchant/advanceprotection.hpp
index c67742e6194..d87f92dee76 100644
--- a/src/map/skills/merchant/advanceprotection.hpp
+++ b/src/map/skills/merchant/advanceprotection.hpp
@@ -9,5 +9,5 @@ class SkillAdvanceProtection : public StatusSkillImpl {
 public:
 	SkillAdvanceProtection();
 
-	void castendNoDamageId(block_list *src, block_list *target, uint16 skill_lv, t_tick tick, int32& flag) const override;
+	void castendNoDamageId(block_list* src, block_list* target, uint16 skill_lv, t_tick tick, int32& flag) const override;
 };
diff --git a/src/map/skills/npc/npcvenomimpress.cpp b/src/map/skills/npc/npcvenomimpress.cpp
index 36f1d8888d4..5ce4a10c360 100644
--- a/src/map/skills/npc/npcvenomimpress.cpp
+++ b/src/map/skills/npc/npcvenomimpress.cpp
@@ -5,11 +5,9 @@
 
 #include "map/status.hpp"
 
-SkillNpcVenomImpress::SkillNpcVenomImpress() : SkillImpl(NPC_VENOMIMPRESS) {
+SkillNpcVenomImpress::SkillNpcVenomImpress() : WeaponSkillImpl(NPC_VENOMIMPRESS) {
 }
 
-void SkillNpcVenomImpress::castendDamageId(block_list *src, block_list *target, uint16 skill_lv, t_tick tick, int32& flag) const {
-	// TODO: refactor to applyAdditionalEffects
-	if (skill_attack(BF_WEAPON, src, src, target, getSkillId(), skill_lv, tick, flag))
-		sc_start(src, target, SC_VENOMIMPRESS, 100, skill_lv, skill_get_time(getSkillId(),skill_lv));
+void SkillNpcVenomImpress::applyAdditionalEffects(block_list* src, block_list* target, uint16 skill_lv, t_tick tick, int32 attack_type, enum damage_lv dmg_lv) const {
+	sc_start(src, target, SC_VENOMIMPRESS, 100, skill_lv, skill_get_time(getSkillId(), skill_lv));
 }
diff --git a/src/map/skills/npc/npcvenomimpress.hpp b/src/map/skills/npc/npcvenomimpress.hpp
index 98056989eab..66d953ad662 100644
--- a/src/map/skills/npc/npcvenomimpress.hpp
+++ b/src/map/skills/npc/npcvenomimpress.hpp
@@ -5,9 +5,9 @@
 
 #include "../skill_impl.hpp"
 
-class SkillNpcVenomImpress : public SkillImpl {
+class SkillNpcVenomImpress : public WeaponSkillImpl {
 public:
 	SkillNpcVenomImpress();
 
-	void castendDamageId(block_list *src, block_list *target, uint16 skill_lv, t_tick tick, int32& flag) const override;
+	void applyAdditionalEffects(block_list* src, block_list* target, uint16 skill_lv, t_tick tick, int32 attack_type, enum damage_lv dmg_lv) const override;
 };