As far as standard mode goes:
Unless this is the only game that you play, or unless your pockets are so deep that you can spend like $50 on it every time they bring out a new “seasonal set of cards” which seems to be every month or so…
then there is no point in playing it more than once every 6 months, to get the free working deck of cards.
The track will never reward you a full working deck, and it doesn’t even let you win enough gold to buy the cards for a working deck.
The regular players are all meta chasers so unless you are too then you will simply be used by the game to give the paying customers wins.
Yes you could just play the other modes and never play standard mode, but then why does standard mode exist?
It is just not fun anymore. Pay to win or go away.