If you boil down Quandrix Unlimited it is essentially about ramp to big creatures/spells, and +1/+1 counters
You can see the number usually in the bottom left of the card
these cards are basically extra lands you can play, and they synergize with artifact payoffs or anything that cares about casting spells, like storm abilities
Search for Azcanta / Azcanta, the Sunken Ruin A powerful value engine, Search for Azcanta was an auto-include in grindy decks during its time in Standard
(To proliferate, choose any number of permanents and/or players, then give each another counter of each kind already there.) How much does Expansion Algorithm cost
Beyond these cards just listed, there are even more on the SNKRDUNK App which have connections to Pokmon Legends: Z-A