*inhales* Well, mebbe have a select screen where the person can choose the element(s) they want the cards to be in, then they get 5 or 10 random cards from that or those element(s). There could also be a 'random elements' button, where you type in the number of elements you want to be in the pack, and it'd pick random elements to put in the pack. You could probably buy it for 1500
or, like, $15 for a premium pack, which has slightly more expensive cards.
The stats would be summin like:
1500
$15
Nymphs: 0.5% Nymphs: 0.5%
Other rares: 2.5% Other Rares: 3.5%
Dragons: 7% Dragons: 11%
'good' cards: 30% 'good' cards: 35%
'meh' cards: 35% 'meh' cards: 35%
'bad' or 'never used' cards: 15% 'bad' or 'never used' cards: 5%
Pillars: 10% Pillars: 10%
Let me know if that's fair.