Ryste

I can confirm. I accidentally did the scenario on medium instead of easy so I forfeited at the start and got the victory + gold (but didn't unlock legendary.)

If you buy the 25 dollar pack, you get the entirety of the physical game, nothing withheld. Every single card in the chests are extra for the digital version, and aren't necessary in the slightest. As far as I've seen, being offline disables absolutely nothing other than your ability to earn gold, but I'm not sure on that.