Although the tokens created by Najeela's first ability are attacking, they were never declared as attacking creatures (for the purposes of abilities that trigger whenever a creature attacks, for example)
This system is visually portrayed as a board where you add colored markers on the tracks to gain new abilities
The treatment of promo cards may be unique, such as the foil treatment or in the case of D23 Expo, D23 Expo marks, on the collectors set, but the characters and gameplay mechanics of those cards will be in the regular set. Miller says the goal for Lorcana is for the game to be an opt-in experience, not a coerced one, so players will have access to all the mechanics available in the game through the standard product without needing to travel to cons or events
As long as Adeline is on the battlefield (and still a creature), that ability will count Adeline itself
You can put a land card onto the battlefield this way even if you've already played a land for the turn
A perfect curve for this deck would look something like this: Turn One: Duke of Weselton or Sergeant Tibbs Turn Two: Flynn Rider or Cruella de Vil Turn Three: Peter Pan Turn Four: Aladdin, Prince Ali or Aladdin, Street Rat Turn Five: Aladdin, Heroic Outlaw Turn Six: Genie, on the Job or Lefou, Instigator to Protect Aladdin You'll almost certainly be in top deck mode at this point, but there's a good chance you'll continue to pull high-impact cards like Kuzco, Tigger, Genie, and Aladdin throughout the rest of the game