Key card battles worth it?

Stuwart

What do you guys think? I usually go for gear and rarely touch the keycard for 50 energy...

Regeneration

I believe the majority aren't too impressed with the current Key Cards, but they will be updated in the near future, stay tuned.

Jabberwocky

You should do at least one for the vader shard in achievements.

I do the credit one on very rare occasions when I desperately need the credits to promote somebody. It's 1 million to go from 6* to 7*.