After two lunchtime rounds with the SDMC, one against a new player, one against a considerably more experienced player, I feel that the cube seems to be well balanced, with a couple of caveats.

I am wondering if decking is too easy of a win con, not in blue but in other colours, ie. fostering the deliberate creation of board stalls because you know your library is 1 card up on the opponent... or is that control? Maybe I could find another card that slips a card back into the library from the graveyard, or something that shuffles back in when it hits the yard.

I don't feel that the colourless lifegain cards are too strong at this stage which is something I was worried about, that they might relieve the tension of the 1 life games too much. That said, I might consider replacing them with removal down the line. Something to consider.

Overall I am very happy with how the cube plays so far. The draft is quite interesting with decks unfolding as you go. Need to keep working and make sure that the balance is good. Today I lost 0-2 but I still think the games were close and not one sided.