Originally Posted by
soranokira
you can have both since my understanding is that you farm up a set amount of revival crystals to trade in for either Karma (black being worth more of course). From my own viewing, I find plat karma rather unnecessary even after AW. drain hp is helpful considering her inability to be healed and makes her more similar to her class name of Vampire Queen, but it's rather unnecessary and Lilia AW can actually kind of replace her completely (lilia's AW ability is to regen hp over time, slightly different from lifesteal, but you get the point)