To get Japanese cards from Wonder Picks requires choosing a card from a Japanese-language Wonder Pick
Combined with Paradise Dragona, it is the Japanese counterpart of the upcoming English set, Surging Sparks
Anatomically, Palinchron is more similar to a dragon than it is to a bird
It gives you some real fixing and ramp, so adding the life gain effect to the Innkeeper makes for a pretty nice two drop for most green decks Even if you always paid 7 for this, it would be kind of alright, and it will frequently just be 5 mana
You could spend $1,200 to get a copy, or you could run the next best option: Watery Grave for $10
Legality depends on the tournament format -- Edea, Possessed Sorceress Art Series can be legal in some formats and banned or restricted in others