The issue with burst spells is that you effectively discard a card to gain some life, which doesnt progress your board state
Being Rakdos-colored, this little Dragon can dive into the graveyard to cast Dragons, making any Dragon deck resistant to board wipe effects and non-exile spot removal, at the cost of the revived Dragon being unable to return a second time this way
She does give you some card selection, but shes 3 mana to slowly draw 2 cards if she survives, and the 2 blue in her casting cost is awkward in some decks as well
Furthermore, a weighted card, or one thats slightly bigger than the rest, could make it easier to pick out in cases where your opponent gives you a set of face-down cards to pick from
Much of the appeal comes from the reintroduction of Trainers Cards, special cards related to some of the most beloved characters in the Pokemon universe