Dragon Slayer Elements

Hi, i am new to this forum and i would like to know what kind of elements are banned or too op for the forum or even if i can be any generation of Dragon Slayer.

Aside from Death(if you want to count it as an element also) nothing else really comes to mind at this moment about banned elements. I'd assume it'd be preferred if one kept to the ones in the elemental chart, but if not then as long as its fair and fits into the charting in its advantages/disadvantages, it might be worth a shot.

As for your question about dragon slayers(DS), if you wish to be one then you can either A) apply for an open 1st generation DS magic, if one is available. B) Have an approved character with enough money and purchase a DS lacrima to become a 2nd generation. Or if you are somewhat lucky, become a 1st generation DS and then purchase the lacrima assigned to your element in order to become a 3rd generation.