Returning to play – October 6, 2022 at 11:21PM

I’m just returning to the game after a very very long hiatus. I’m only really interested in playing standard and because I’ve been gone for so long it seems I’ve been gifted two complete decks, not much interested in the demon hunter but the tech titans deck is good fun. I’m not interested in sinking any money into the game to get new cards so I can play standard with other characters and decks, is there anyway around this? And best tips for returning players?

TLDR: Haven’t played in ages and I suck, can I get new cards and characters without paying?