Depends on which hero you want to play. Professor Teklovossen is only really playable in UPF. If you have friends to play that with, great (I don't🥲). If you want to play the blitz format, you might want want to look into the other mechanologist heroes. I guess Maxx and Teklovossen might be the most interesting to you as the new Dash is quite hard to learn to play. If you want to buy packs, I'd say bright lights should give some playable upgrades. But overall, if you can, buying singles is cheaper.