Board Thread:Game Discussion/@comment-192.107.46.241-20130703015436/@comment-10995584-20130703022301

Cube farming is just farming cubes during an event. Farming is just to save them for later use

The current event is The Bee Team.

You regenerate one cube per hour with a maximum of three cubes. If you level up, you'll automatically regenerate all of your battle cubes.

When you sucessfully defeat a boss, you earn battle cube recharges. Storing those battle cube recharges is what this cube farming is.

I hope that made sense.

As to the second question, you can only trans scan matching pairs. By matching pair, they must be the same rarity and be one part robot form and the other part alternate form.

You mentioned you've already max trans scanned (the star) your StarScream 3. That meant you had both StarScream's robot and alt form; both rarity 3.

So StarScream's rarity 4 must be paired with another rarity 4. It doesn't get used with the StarScream 3 in any way.

As for what do you do with the rarity 3's...well you get nine cards to use. As your deck grows, cards will eventually be replaced.

Hopefully all this helped.