Unlike many things, there (usually) isnt a specific line you can find that just says "Drop Rate Chance 100" and you change that around. In most maps it is usually in the coding (war3map.j) and you will need to learn jass to spot each and every item drop characteristics and how to change them, FOR EVERY MAP.
So we can't give you the global way of changing a drop rate. You need to learn jass in order to do so.
ChatBot: FatherSpace logs into the Chat.
(02:24:28) Lanaya: Gtfo ken.
(02:24:33) ChatBot: FatherSpace logs out of the Chat.
(02:24:40) Lanaya: Thought so. bitch.
(02:24:44) ChatBot: FatherSpace logs into the Chat.
(02:24:48) FatherSpace: Can I come back yet?
(02:24:51) Lanaya: What'd i say earlier.
(02:24:51) Lanaya: No.
(02:24:58) FatherSpace: Let's try this...
(02:25:01) ChatBot: Lanaya has been logged out (Kicked).
(14:33:51) 2Pac: Do you know what'S so funny?
(14:34:01) Lanaya: No, please show me.
(14:34:07) 2Pac: This.
(14:34:09) ChatBot: Lanaya has been logged out (Kicked).
(14:34:10) 2Pac:
(14:35:59) haxorico: No one will belive me if I say "I got this song from 2pac on MSN" lolz ^^
(14:36:02) Lanaya: lolz.
(14:36:16) 2Pac: I AIN'T DEAD FFS.
(14:36:26) 2Pac: I'm a living legend, y'now.
(14:37:17) haxorico: why is 2Pac a legend?
(14:37:28) Lanaya: He's the worse rapper evar.
(21:53:08) (673237): plzplzplz, im sorry about before.
(21:53:26) FatherSpace: I'm sorry you were born.
(21:53:31) ChatBot: (673237) has been logged out (Kicked).
