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PapaDom

Normal Monster Ecl_Tdun Card Drop As Hard As Mvp Card Drop

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Please understand that it is a misconception to think that the drop rate increase by double when you used bbgum. It basically re-roll the drop of the item, as if you have killed the monster twice. However, if the first roll gives you the card, the same item will not drop again. I shall give you an example of how it's calculated.

MVP card has a SUCCESS drop rate P(S) of 1% which is equivalent to 0.01 in probability term, hence the FAILURE rate P(F) is 0.99.

Let's say the first roll is a FAILURE follows by a SUCCESS, hence

P(F) * P(S) = 0.99 * 0.01 = 0.0099

Therefore the total SUCCESS drop rate of getting a MVP card, after using bbgum is P(S) + [P(F) * P(S)] = 0.01 + 0.0099 = 0.0199, which is equivalent to 1.99%.

Some might say that 1.99% is nearing to 2%, yes, that's very safe to assume it that way. However, for for an item with a SUCCESS drop rate of 50% (Valhalla's Flower, for an example), using the same concept,

P(S) + [P(F) * P(S)] = 0.5 + (0.5 * 0.5) = 0.75

the result yielded ONLY 75%, which is far less than of the expected 100% SUCCESS drop rate.

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The droprate of cards becomes 2% when you use bgum. While 1 hour of farming is often enough to get a card, it's also possible that you will sometimes need longer than that. After all, you have a 98% chance to not get a card for each monster.

If you type @mi "monster name" and the card is listed among its loot, it should drop eventually.

P.S: The map doesn't sound familiar, it may well be that the monsters there don't drop their cards yet. Try @mi and check if it's listed.

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Please understand that it is a misconception to think that the drop rate increase by double when you used bbgum. It basically re-roll the drop of the item, as if you have killed the monster twice. However, if the first roll gives you the card, the same item will not drop again. I shall give you an example of how it's calculated.

MVP card has a SUCCESS drop rate P(S) of 1% which is equivalent to 0.01 in probability term, hence the FAILURE rate P(F) is 0.99.

Let's say the first roll is a FAILURE follows by a SUCCESS, hence

P(F) * P(S) = 0.99 * 0.01 = 0.0099

Therefore the total SUCCESS drop rate of getting a MVP card, after using bbgum is P(S) + [P(F) * P(S)] = 0.01 + 0.0099 = 0.0199, which is equivalent to 1.99%.

Some might say that 1.99% is nearing to 2%, yes, that's very safe to assume it that way. However, for for an item with a SUCCESS drop rate of 50% (Valhalla's Flower, for an example), using the same concept,

P(S) + [P(F) * P(S)] = 0.5 + (0.5 * 0.5) = 0.75

the result yielded ONLY 75%, which is far less than of the expected 100% SUCCESS drop rate.

Never calculated it through, but yes, it triggers a second "re-roll" of the item drop.

Great to see that some players finally understand it :P

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