Hi This is Slides from Server 170!
Roulette Price Calculation.
After the Chaos Eye packs were revamped from:
$5 for 6 Chaos Eyes to $5 for 5 Chaos Eyes. Which causes a slight increase in price for these immortals
It takes 1600 shards to Max a chaos immortal.
To minimize the cost you will have to max out the right side rewards while your immortal is in cycle. Which adds up to a total of 500 spins.
Since Chaos Eyes are $1 for 1 Chaos Eye we can determine that:
500 spins = $500
500 Spins = 200 Immortal Shards
Since it's 1600 shards to max the immortal it will take:
8 Events And $4,000 To Max A Chaos Immortal
1600 / 200 = 8
8 x $500 = $4,000
Since chaos eyes are $1 = 1 Chaos Eye: $4,000 = 4,000 spins needed.
How Can We Lower This Cost?
Currently in the Gtarcade store there is an option to purchase chaos eyes which come at a cheaper price than the normal $1 for 1 eye.
But this is a limited purchase.
You can only purchase this item 5 times each month.
How Does This Make It Cheaper?
The Pack in Gtarcade is priced at $20
Which contains 30! Chaos Eyes, and 18 Philosopher Stones
This means you are getting $10 worth of Chaos Eyes extra when buying bundle
In total this can be bought 5 times a month:
30 x 5 = 150 Chaos Eyes
So in total you can purchase 150 Chaos Eyes for $100 which is an overall 50 extra Chaos Eyes ($50 worth) And 90 Philosopher Stones!

Roulette Reward Calculation
25 Spins on the wheel = 6 Chaos immortal shards + 4 of their exclusive artifact. (you can choose between Loki/Wukong)
To maximize your rewards in roulette you will need to spin the wheel a total of 500! Spins which will allow you to claim all the rewards on the right side.
The Right side contains a specific immortal that you cannot choose.
100 Spins: 10 Shards
200 Spins: 10 Shards
300 Spins: 10 Shards
400 Spins: 10 Shards
500 Spins: 40 Shards
In Total The right side contains 80 immortal shards.
Since 25 Spins = 6 Immortal shards, and 4 EA shards We can calculate that:
100 spins will give 24 (6x4) Immortal shards, and 16 (4x4) EA shards. + 10 shards from the right side.
which equals 34 shards and 16 EA shards in total for 100 spins.
This is process is repeated 4 times.
400 Spins = 136 (24x4 +40) Immortal shards, and 64 (16 x 4) EA shards.
The last 100 spins to reach the 500 goal on the right side gives the most value since there are 40 shards in the last chest.
Which give 64 (24 + 40) Immortal shards, and16 (4 x 4) EA shards for the last 100 spins.
Total Immortal/Exclusive Artifact Shards Earned:
In total you get 200 Immortal shards, and 80 EA shards.
500 spins / 25 = 20
20 x 6 = 120 Immortal shards + 80 from the right side = total of 200
20 x 4 = 80 Exclusive artifact shards.
How Many Events Does It Take To Max An Immortal?
Currently to max a chaos immortal from summoned to 7* + artifact slot unlocked is a total of 1600 Shards!
1* : 50 Shards
2* : 100 Shards
3* : 150 Shards
4* : 200 Shards
5* : 250 Shards
6* : 300 Shards
7* : 350 Shards
Artifact Slot : 200 Shards
So 1600 shards / 200 Earned per event = 8 events needed to max a chaos immortal. But there is a catch The right side currently has a set immortal that can NOT be chosen. If you are going for a specific immortal, and will only be maxing one chaos immortal it can take up to 16 events due to you having to wait until every other event to maximize your rewards.
Exclusive Artifacts Accumulated:
Since It takes A total of 4,000 Spins to max A chaos immortal through the roulette over the course of the 8 events you will accumulate:
80 x 8 = 640 EA shards
640 / 60 = 10.6666 (10 2/3) EA's
Or in other words 10 Exclusive Artifacts, and 40/60 for the 11th exclusive artifact.
This will leave your artifact at 3* but only 20! shards short off of developing it into 4*