I just created a new account and bought 6 extended boxes. That's 10 packs per box and 10 cards per pack. Altogether that should be 600 cards. I've received 328 cards. Where the heck did the rest of my cards go? (Yes I refreshed) (Yes I'm counting duplicate cards)
They are probably Spells, Relics and Equipment, which have different tabs: Let me know if you still can't find them.
remember to use trading sites (Poxbox, poxpoints) to help you build decks as the on site trader can be a sharktank
"6 common, 3 uncommon, and 1 rare rune. Each rare slot has a 10% chance of becoming an exotic. Additionally, this pack comes with 1 token and a 5% chance to get an extra LEGENDARY rune from this set." = 10 runes (or 11) and 1 token