So the best thing for you to do if you have like 90-95 play points and just need 5-10 more for an entry is to buy treasure chests from one of the bots (like Goatbots) in the Trade section. Each treasure chest has a minimum of 5 play points, and often quite a bit more (if you’re lucky).
Chests usually have a rather bad rate, though. You can get hosed quite a bit if you get one of the happy little chests with 5 PPs and one of the thousands 0.005 tix bulk rares.
Sure, from time to time you can get lucky and find something worth a couple tix, but from my experience, chests are rather bad EV. And I really like to gamble on chests from time to time, buying around 40 chests, selling contents to buy more chests, etc… but after about 3-4 cycles you often run dry, ending up with several hundred PPs and maybe one or two good cards you don‘t want to sell… best time to spent those PPs is release day of a new set, so you at least get some value back, when the buy prices are still good… usually those prices drop within few days for 95% of cards from a set. If you don‘t use the PPs to actually play and maybe make something back via the prices, this is a rather lose approach to the economy and not really recommended.
Not sure, how this works out for even higher amounts of chests, but I would suppose it‘s usually even worse.