15 creatures, at a cost of 550 mana crystals a shot.
I only had 2 out of the 15 creatures - Odric and Sigarda.
.
So what are the chances of a duplicate?
If this is random and equally weighted for all of the cards, my chance of a repeat should be 2 out of 15.
13.333% chance of pulling a duplicate.
First pull… Sigarda.
Okay, maybe just bad luck.
Second pull… Sigarda.
1100 crystals for two duplicates in a row… 1.778% chance.
Pulling the SAME card two times in a row that I already have… 0.89%
…
Last time they “sold” mythics for crystals.
I got a duplicate of Odric for one of my 3 purchases.
These mythic sales are a complete sucker’s bet in my experience.
I guess the game will now focus on seeing how many crystals I can accumulate, since the drop rates in “big box” have been equally pathetic… a single duplicate rare is my usual “loot”, and we don’t even need to discuss the drop rates in single 5 card packs… I’m more likely to have 2 or 3 of the same common / uncommon in a single 5 card draw than I am to get a rare or mythic in a big box.