Not only do a number of characters, songs, and actions cause your opponent to Discard cards, but some even have abilities that give you a bonus for opponents having fewer cards in their hand than you
Most notably, Sisay's activated ability can be used if you pay one mana of each color, tutoring for a legendary permanent with a mana value less than Sisay's power, putting that card directly into play
Considering the main strategy of this deck, it goes without saying that adding more Princesses on top of the Queens Sensor core can be a good idea to improve the efficiency of your strategy
But aside from somewhat limited events, there is a cap on how much fun you can have here (at least for me, anyway)
Three Tree City is a card that might be good though
But Pokmon has always had rare cards! you scream, absolutely unprepared for how out of hand it has gotten over the past few sets