With the new Double Dragon Chest promotion, there is an Ice Chest that gives you a purple reward, one of those prizes being an Ice Cube token. 10 of these tokens are required to be combined to unlock the new penguin pet override.
Assuming we're using the base rarity value of a purple item in Treasure Hunter, the base rate is 0.15%, or 1/666.67 chance of getting a purple. This means, statistically, you would need to invest ~667 keys to get 1 purple reward, giving you 1 ice cube token.
Since 10 tokens are needed, this would take an average of 6,667 keys in order to fully unlock the penguin pet override. Since bonds can be handed in for 15 keys, it would take 445 bonds to get this many keys. At a price of around 25m per bond to make math easier, this gives you an absurd 11,125,000,000 gp. This is 11.1b of in game currency.
Now let's take a look at the process of buying these keys. The best current price for keys is 675 keys for $110. You would need to purchase around 10 of this package, bringing the total cost to around $1,100 just to unlock this pet. Now, assuming you earn other rewards as you go, you're going to gain other benefits and rewards separate from this; but if this is your main goal, these are the numbers needed to invest to get this.
The worst part? Ice cube tokens are useless unless you get all 10; they serve no other purpose, and can't be traded or sold to other players. So if you get 7 tokens, they're completely useless unless you get the other 3.
tl;dr: DON'T TRY TO GET THIS PET.
External link →