I got this card in my first pack i opened and a Kingdra prime in the third pack
Whats particularly interesting to me is the utility these lands provide, as seen in Boross Elegant Parlor
If people were going to bring in a lot of overly narrow cards like Erase and Stain the Mind, he would transform into a creature deck to dodge these hate cards and take advantage of his opponent's watered-down deck
Flickering Aang, at the Crossroads to spew creatures seems like a decent start to a deck, especially with mass-flicker cards like Eerie Interlude and Hide on the Ceiling to flicker Aang and all your goodies
If he is cast early and able to tap for two or more the subsequent turn without being dealt with there is a very high chance you are winning that game
All the legends in these decks have a unified goal of working together within their decks theme and its fun building cards like this to have that creative team synergy, whether thats sayinteracting with counters in Final Fantasy X or playing with the graveyard in Final Fantasy VI