May be it is possible to win with quite large balance, and with let say 46.95 chance of win with double bet, when you loose. I think with some Bitcoins in balance, you can take good chance to win something
You will have chance to win at begining, but probability to win with biger bets will aspire to zero. You can have huge balance of BTC, but unfortunatly and obviously nobody, including "Creator" will give you garanty, that you gonna win in this Dice jumble with big deposit. The all algorytm of this game running in the way to bring profit to creator and his team, otherways it makes no sense to keep this Dice on afloat. Simple capitalist math )
Nope, this is not how provably fair work, if you said it this way, everyone will get their own profit and run with it because you can always win on the beginning of your games. Everyone may be suffer more loss than win but there are still players that manage to win tons of coins but of course only some that have this luck. And btw big bankroll also play a part although it is not that much but still it is needed to win big