First, it felt appropriate for the new version of the card to be a Kithkin, but the first card had appeared in Eventide
These will transform after you fulfill some kind of condition on the card, usually either an activated ability (i.e., paying to exile Terra, Magical Adept) or triggered ability (i.e., having six permanents in the yard for Exdeath, Void Warlock at end of turn)
This trend continued with Portal Three Kingdoms, which was created for the Asian market as a retelling of the Three Kingdoms period of Chinese history
Mill decks will get rid of the opponent's whole library, but weird rule-breakers like Laboratory Maniac won't mind at all
Youre risking getting color screwed for the town subtype and that sweet, sweet 2 life
Discard this card when the site is discarded or returned to its location deck