The 83x10 comes and goes. I don’t know what uses them today. The toty one is where you get lookman. The 83x10 usually gives you pretty good cards. I’m mean not top ones but enough to reroll them and use up the 83s or even 82s. You can also use them in totw. Then when you build up your club use the higher cards in either player sbcs you want or more expensive icon or promo ones.
There are youtube videos to explain it more but you do your daily bronze silver and gold then build from there. Then also do the league sbcs. While the menu grind is boring you basically don’t have to spend money.
The guys who used to do the sbc thread are much better at it then me but they can do every sbc available without money.