So, I did some Excel magic, and unless I messed up something major along the way, it’s actually a lot less than has been calculated so far.
It’s quite a bit of text, including a lot of numbers, so you can skip to the end for a TLDR, if you want.
Based on in-game odds, I drew the following conclusions:
Every 8 standard tokens yield a 2*.
Every 43 standard tokens yield a 3*.
Every 3* gained from a standard token yields a bonus hero. We’ll set our bonus hero to 3* Wolverine of course, for this experiment.
So, every 43.000 standard tokens gives you 5.375 random 2*s, of which about 413 are Wolverine.
These 43.000 standard tokens also give you 1.000 random 3*s, of which about 21 are Wolverine.
These 1.000 random 3*s also give you 1.000 bonus heroes, which of course, are all Wolverine.
Then we get to champ rewards.
Every 63 covers you get for 2* Wolverine gives you three 3* Wolverine covers.
These 43.000 standard tokens give out about 20 covers for 3* Wolverine by way of 2* champ rewards.
Every 113 covers you get for 3* Wolverine gives you three 4* Wolverine covers.
These 43.000 standard tokens give out about 27 covers for 4* Wolverine by way of 3* champ rewards.
Every 113 covers you get for 4* Wolverine gives you six 5* Wolverine covers.
These 43.000 standard tokens give out about 1,5 covers for 5* Wolverine by way of 4* champ rewards.
Totals for all Wolverines, directly from tokens and from champ rewards, are:
2* Wolverine — 413 covers
3* Wolverine — 1.041 covers
4* Wolverine — 1,5 covers
If we add all these covers and keep opening standard tokens until we come up with 13 covers for 5* Wolverine we need to open 380.943standard tokens.
Apparently, thanks to the guaranteed bonus hero when drawing standard tokens the brunt of the Wolverines you’ll pull are 3*, instead of the higher-odds 2* variant.
Also, along the way we champed 2* Wolverine 59 times, costing about 4,4 million Iso-8.
We champed 3* Wolverine 82 times, costing about 10,4 million Iso-8.
We champed 4* Wolverine 3 times, costing about 1,1 million Iso-8.
If we sold all the 1* covers we got from opening these tokens, we got about 32,4 million Iso-8, more than enough to cover the champing costs.
All this is not accounting for the other 2s, 3s, 4s and 5s gotten along the way, as well as all the other champ rewards from the Wolverines we farmed, or the Iso-8 and Hero Points gotten for selling them as max-champs.
TLDR:
You need to pull 380.943 standard tokens to fully cover Old Man Logan.