Yes, I like the idea of dragonsdemesne.
15 minutes before tourneys starts, the TO says what numbers or letters the name should include.
I also would say rare cards should be banned. It's easy and fast to get a score of 500 if you know how.
The decks would be more "newbie-like", because the participants won't have the electrum.
For me, I created an account and I have 3 good decks for the tourney now, just because of the extra electrum...
I think it would be more fun without rares...