Board Thread:Game Discussion/@comment-11482499-20130725075911/@comment-9555825-20130725173649

I have not done the math myself and I am not sure how OP did his calcs, but we should also take note that Mobage has implemented different drop rates for bot and alt cards in the past. The table only says the posibility of obtaintaing a ultra rare card not that both are the same. These numbers could actually be high if for instance the alt card has 1/2 the drop rate of the bot. You could end up with multiple bots and no mtm.