A list of known game features and options that have been temporarily or permanently removed from CotD.
Temporary[]
The No Animations battle option.
As this was causing more bugs than the time saved by having this option available, hopefully it has only removed until it can be fixed.
Permanent[]
These were removed from shop purchase and effectively replaced with drafting and other pack promotions.
Replaced[]
These were replaced with upgraded versions called Enhanced Chests of Untold Riches as best seen via Consumables.