Containing the focus of the game helps Lorcana establish an identity and gives the designers something to build towards
If it helps, think of Items and Characters as similar (Game changing, multiple use), and Actions and Songs as similar (one-use, instant, discarded immediately after use)
We'll be breaking down everything you need to know about the formats, the players, and the metagame ahead of the event
The loose math Im using is half plus one, under the logic that seeing more than half your deck is an unlikely event in most games and drawing significantly more than half your learn cards in a game is even more unlikely
Where it gets truly strong, though, is playing those creatures that get arbitrarily large think Malignus, or Taurean Mauler and following up with instant speed Burn spells