If you keep drawing pots, youre essentially playing with a 34-card deck and a costless hand advantage
But Amethyst Cat wouldnt be found in a good Crystal Beast deck, so neither should this
And even though the poll was for the 200-card nostalgia set, lots of these cards were scheduled for the core set, available in multiple rarities, so were going to keep them there in the core set
Unlike Skill Drain, it also destroys itself once it runs out of material, so you dont need to worry about drawing an out for your floodgate
Some other sets that include this rarity are (in no particular order): SOFU, 2018, 20TH (all three), SAST, 20DS, 19PP, DANE, 20CP (all four), RIRA, CP19, CHIM, IGAS, YMAB, LGB1, DMMD, VP19
Unlike the other two, it has to come from the player's hand and has a low enough Level to Normal Summon without a Tribute