Same as below only 30 seconds duration

git-svn-id: https://svn.code.sf.net/p/rathena/svn/trunk@8439 54d463be-8e91-2dee-dedb-b68131a5f0ec

db/skill_cast_db.txt

@@ -861,7 +861,7 @@
 //-- GS_TRACKING
 512,1200:1400:1600:1800:2000:2200:2400:2600:2800:3000,0,0,0,0
 //-- GS_DISARM
-513,0,1000,0,75000:90000:105000:120000:135000,0
+513,0,1000,0,30000,0
 //-- GS_PIERCINGSHOT
 514,0,1000,0,0,120000
 //-- GS_RAPIDSHOWER