Updated Howling of Mandragora effect

* Timer is not refreshed when casted on target again.
* Target's SP is not zapped again when already active.

src/map/skill.c

@@ -10069,19 +10069,20 @@ int skill_castend_nodamage_id (struct block_list *src, struct block_list *bl, ui
 	case GN_MANDRAGORA:
 		if( flag&1 ) {
 			int rate = 25 + (10 * skill_lv) - (tstatus->vit + tstatus->luk) / 5;
+
 			if (rate < 10)
 				rate = 10;
-			if (bl->type == BL_MOB)
-				break;
-				if (rnd()%100 < rate) {
-					sc_start(src,bl,type,100,skill_lv,skill_get_time(skill_id,skill_lv));
-					status_zap(bl,0,status_get_max_sp(bl) * (25 + 5 * skill_lv) / 100);
-				}
-			} else {
-				map_foreachinrange(skill_area_sub,bl,skill_get_splash(skill_id,skill_lv),BL_CHAR,src,skill_id,skill_lv,tick,flag|BCT_ENEMY|1,skill_castend_nodamage_id);
-				clif_skill_nodamage(src,src,skill_id,skill_lv,1);
+			if (bl->type == BL_MOB || (tsc && tsc->data[type]))
+				break; // Don't activate if target is a monster or zap SP if target already has Mandragora active.
+			if (rnd()%100 < rate) {
+				sc_start(src,bl,type,100,skill_lv,skill_get_time(skill_id,skill_lv));
+				status_zap(bl,0,status_get_max_sp(bl) * (25 + 5 * skill_lv) / 100);
 			}
-			break;
+		} else {
+			map_foreachinrange(skill_area_sub,bl,skill_get_splash(skill_id,skill_lv),BL_CHAR,src,skill_id,skill_lv,tick,flag|BCT_ENEMY|1,skill_castend_nodamage_id);
+			clif_skill_nodamage(src,src,skill_id,skill_lv,1);
+		}
+		break;
 	case GN_SLINGITEM:
 		if( sd ) {
 			short ammo_id;

src/map/status.c

@@ -8573,6 +8573,7 @@ int status_change_start(struct block_list* src, struct block_list* bl,enum sc_ty
 			case SC_DEEPSLEEP:
 			case SC_NETHERWORLD:
 			case SC_CRYSTALIZE:
+			case SC_MANDRAGORA:
 			case SC_DEFSET:
 			case SC_MDEFSET:
 			case SC_NORECOVER_STATE: