Arn Anderson, Ryback, King Barrett and Justin Bradshaw

I think many people (myself included) that were unable to unlock these superstars before they were removed from the pulls should have another way to earn these trainer abilities. Some of the trainer abilities are game changers for certain characters.

• Arn Anderson's training ability: (At 5000) Moves that generate botch gems will create 9 more botch gems.
• Ryback's training ability: (At 5000) Moves that destroy multiply gems will destroy 6 more multiply gems.
• King Barrett's training ability: (At 5000) Moves that destroy red gems will destroy 5 more red gems.
• Justin Bradshaw's training ability: (At 5000) Purple Moves that destroy gems will destroy 4 more gems.

Justin Bradshaw's ability can significantly help multiple superstars, like Doink for example, who's Purple Choose 4 Destroy Move can bump up to Choose 8 to destroy.

Or Arn Anderson's training ability, which honestly can make or break some superstars like Tech Bret Hart who's Suplex goes from a Choose 5 Gems to Make into Botch Gem into a Choose 14 Gems to Make into Botch Gems and his Diving Elbow Drop which can make 16 Random Red Gems into Botch Gem instead of 7.

There are many more examples but these are definitely training abilities that need to be reintroduced into the game.