(3) A monster with Cubic Counter has its effects negated, and it cannot attack
Faeries have particularly good synergy here, if you can grab flitters like Glamermite, and combine it with cards like Illusion Spinners (as long as you control a Faerie, you can cast this card with Flash), or even Harmonized Crescendo (choose a Creature type, draw a card for each permanent of that type you control)
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Armed with the set, obtain the card number from the small print at the bottom of the card
Theres a few different pieces of this that could be delved into a bit, but ultimately I think if you recognize you are buying things just to get the high in a sense, want to stop but cant or dont know how, and then shortly afterwards move on to find the next thing to buy, you may be in a cycle of what you termed collecting addiction