Sugar requires you to play with Donquixote Characters for her End of turn ability, which isn't overly surprising, but it's interesting that Sugar has an ability that relies on Events
Collector Boosters / Booster Display When you dig into each Collector Booster, youre guaranteed to find Traditional Foils, Rares and/or Mythics, and a Universes Beyond - Jurassic World Collection card depicting iconic characters and moments from the Jurassic World franchise
Regarding point 2, this is likely designed this way because her ultimate changes control, but it is naturally resistant to control theft and works well with permanents that change control on their own
Master Duel Hand traps like Maxx "C" are one of the most commonly used types of cards in the Yu-Gi-Oh
Making five mana on turn two isn't really something you are supposed to be able to do in unpowered cubes, certainly not coloured mana