"Method and storage. Getting mana out of your you into some other form is a hassle, so if you do not want to be generating it to always use right away, good to have plenty of space. Mimi have low storage, high speed - exact value varies witch by witch so these are low granularity, low medium high, but mimis are highest of the high - can pat their own heads for mana but it makes them sad. Oreads are double high, we get mana from being near our favorite people or critters. Luxals and neutrals are double medium - neutrals by sleep, luxals by being around 'spensive things, rocks and gold and such especially if they're worked fancy. Pharons, low speed high storage, charge off being famous - don't have to be popular, supervillain or cancelled on the interwebs works fine. Hannya have high storage medium speed, charge off getting drunk. Wulongs also high storage medium speed, being around art charges them, does not have to be pricey, do it by pirated ebooks and kids with crayons perhaps. Orcs high storage low speed, charge off having kids - fastest when pregnant, boy orcs get the raw deal. Gnomes medium storage high speed, they get mana by building contraptions. Dravir are also dragony; low storage medium speed, mana by wrecking shit, charge a lot faster if it's killing people. Daeva medium storage high speed, charge off other people's feelings - about them, one on one, or about something else, big groups at the football match. Nymphs like my girlfriend low storage high speed, get a charge of being desired like because they are so pretty so she can always tell when I have been thinking about her all day at work, or making people desire other things sales pitch style. This rule anything out or shall I do all the immortalities now?"