Steem Monsters - Alpha and Beta cards differences

Some of us got in the game even that started and it was in an inception phase and we were rewarded with Alpha cards.
Some other got in the game later and at that point we were getting Beta cards.
But what is the difference between the Alpha and Beta cards some other might ask...?

The difference is that the Alpha cards can be leveled up much faster than the Beta cards. Beside that let's see through the following pictures exactly what we mean.

Alpha cards:

Beta cards:

What will be the next cards when the beta will get low on inventory? What power will they have? How will differ from the other ones...? We will probably need to wait quite some time and than the game founders will reveal that.