Given how low the mana investment for this dragon can be, I'm expecting this one to make a big splash
To determine the total cost of a spell, start with the mana cost or alternative cost you're paying (such as a flashback cost), add any cost increases (such as kicker costs), then apply any cost reductions (such as that of Cid's first ability)
Its not uncommon for Amethyst decks to run four copies of draw cards such as Friends on the Other Side, Merlin Rabbit, Maleficent Sorceress, and/or Ursula Power Hungry, so it wouldn't be hard to rack up several Lore in a flash
It also gives you mana towards them, in increasing quantity each time
Given how new the trading card game is, the Disney Lorcana rules aren't exactly common knowledge yet