Question: mob_item_ratio.txt

[GM Takumirai]

how to setup mob_item_ratio.txt

example GTB card i want it 0.01% drop rate?..

in mob_item_ratio.txt - what do i need to input inside?..

do i need to remove anything in mob_db.txt ???

example GTB card ID do i need to remove it there?..

[Mystery]

Very simple:

// Overrides for global item_rate* values from conf/battle/drops.conf
// Database format:
// ItemID,Ratio{,MonsterID}

// Result:
// ItemID base drop rates defined in mob_db will not get multiplied
//  by global item_rate* values (aka drop rates) from
//  conf/battle/drops.conf. Instead Ratio will be used (100 = 1x).
// If no MonsterID is specified, all monsters will be affected,
//  otherwise only listed ones.

// Examples:
// 909,100 // Jellopies from monsters will drop with 1x drop rate regardless of global drop rate
// 909,1000 // Jellopies from monsters will drop with 10x drop rate regardless of global drop rate
// 909,100,1002 // Jellopies from Porings will drop with 1x drop rate. Other monsters that drop Jellopies are unaffected (use global drop rate).

Follow the examples and you'll be fine, the last one in particular is what you're looking for.

[GM Takumirai]

do i need to delete something in mob_db.txt??

do i need to configure in /conf/battle/drop ???

do the 100x rate is equal to 1%?

[Mystery]

do i need to delete something in mob_db.txt??

do i need to configure in /conf/battle/drop ???

do the 100x rate is equal to 1%?

1) No

2) No

3) :

// 909,100,1002 // Jellopies from Porings will drop with 1x drop rate. Other monsters that drop Jellopies are unaffected (use global drop rate).

909 is the item ID, 100 is the rate.. which in this case will be 1x - 1000 will be 10x etc. and then 1002 is the monster. So, for your case, set this properly for GTB.

// Overrides for global item_rate* values from conf/battle/drops.conf
// Database format:
// ItemID,Ratio{,MonsterID}

Doesn't matter what your configurations are in the drops.conf because this specific file will overwrite it.