Here is the Trump video with lots of free decks:
Yeah, but he did that before the expansions came out, I'm not actually sure if "basic" decks could be viable with the new cards that are out now.
It'd be an interesting thing now to see if it's still viable to make that kind of thing work.
It's not even necessarily that the new cards are straight up better, but they opened up so many avenues for variations in the play styles that you'd have one hell of a time I think finding a way to take basic cards and make them work with the new stuff that's out now.
There's also another glaring problem - in that you can't get basic card packs from the arena anymore. You'd have to pony up 100g a pop to get the card packs for the basic cards.