diff --git a/common/patches/laurion.cpp b/common/patches/laurion.cpp
index ba9ecb2c9..f51c4f051 100644
--- a/common/patches/laurion.cpp
+++ b/common/patches/laurion.cpp
@@ -2938,6 +2938,7 @@ namespace Laurion
 
 	ENCODE(OP_BeginCast)
 	{
+		ENCODE_LENGTH_EXACT(BeginCast_Struct);
 		SETUP_DIRECT_ENCODE(BeginCast_Struct, structs::BeginCast_Struct);
 
 		OUT(spell_id);
@@ -3034,6 +3035,19 @@ namespace Laurion
 		}
 	}
 
+	ENCODE(OP_ManaChange) {
+		ENCODE_LENGTH_EXACT(ManaChange_Struct);
+		SETUP_DIRECT_ENCODE(ManaChange_Struct, structs::ManaChange_Struct);
+
+		OUT(new_mana);
+		OUT(stamina);
+		OUT(spell_id);
+		OUT(keepcasting);
+		OUT(slot);
+
+		FINISH_ENCODE();
+	}
+
 	// DECODE methods
 
 	DECODE(OP_EnterWorld)
@@ -3238,14 +3252,13 @@ namespace Laurion
 		SETUP_DIRECT_DECODE(CastSpell_Struct, structs::CastSpell_Struct);
 		
 		emu->slot = static_cast<uint32>(LaurionToServerCastingSlot(static_cast<spells::CastingSlot>(eq->slot)));
-		
-		//We need to figure out the x y z position stuff
+
 		IN(spell_id);
-		emu->inventoryslot = LaurionToServerSlot(eq->inventory_slot);
+		emu->inventoryslot = -1;
 		IN(target_id);
-		//IN(y_pos);
-		//IN(x_pos);
-		//IN(z_pos);
+		IN(y_pos);
+		IN(x_pos);
+		IN(z_pos);
 		FINISH_DIRECT_DECODE();
 	}
 
diff --git a/common/patches/laurion_ops.h b/common/patches/laurion_ops.h
index 04dbe7ba0..979b8f673 100644
--- a/common/patches/laurion_ops.h
+++ b/common/patches/laurion_ops.h
@@ -38,6 +38,7 @@ E(OP_ShopRequest)
 E(OP_BeginCast)
 E(OP_BuffCreate)
 E(OP_Buff)
+E(OP_ManaChange)
 //list of packets we need to decode on the way in:
 D(OP_EnterWorld)
 D(OP_ZoneEntry)
diff --git a/common/patches/laurion_structs.h b/common/patches/laurion_structs.h
index 39530e101..0f1d1c00d 100644
--- a/common/patches/laurion_structs.h
+++ b/common/patches/laurion_structs.h
@@ -631,14 +631,29 @@ namespace Laurion {
 			/*015*/
 		};
 
+		//I've observed 5 s16 that are all -1.
+		//Clicky items don't even trigger this as far as i can tell so not sure what this is for now.
+		//One of these could have changed to a s32 but im not sure.
+		struct CastSpellInventorySlot_Struct {
+			/*00*/ int16 type;
+			/*02*/ int16 slot;
+			/*04*/ int16 sub_index;
+			/*06*/ int16 aug_index;
+			/*08*/ int16 unknown1;
+			/*10*/
+		};
+
 		struct CastSpell_Struct
 		{
 			/*00*/	uint32	slot;
 			/*04*/	uint32	spell_id;
-			/*08*/	InventorySlot_Struct inventory_slot;  // slot for clicky item, Seen unknown of 131 = normal cast
-			/*20*/	uint32	spell_crc; // this is pinstSpellManager_x->SpellsCrc[spell_id]
-			/*24*/	uint32	target_id;
-			/*28*/	uint8	unknown2[11];
+			/*08*/	CastSpellInventorySlot_Struct inventory_slot; 
+			/*18*/	uint32	target_id;
+			/*22*/	uint32	spell_crc; 
+			/*26*/  float y_pos;
+			/*30*/  float x_pos;
+			/*34*/  float z_pos;
+			/*38*/	uint8 unknown; //not sure, might also be before y_pos; only ever seen zero for both but should be easy to figure out later
 			/*39*/
 		};
 
@@ -680,6 +695,15 @@ namespace Laurion {
 			/*168*/
 		};
 
+		struct ManaChange_Struct
+		{
+			uint32 new_mana;
+			uint32 stamina;
+			uint32 spell_id;
+			uint32 keepcasting;
+			int32 slot;
+		};
+
 #pragma pack()
 
 	};	//end namespace structs