Adventure Lands Ishgard, the Holy See Jidoor, Aristocratic Capital Lindblum, Industrial Regency Zanarkand, Ancient Metropolis Midgar, City of Mako The adventure lands from Final Fantasy provide utility in specific decks, with the upside of a land drop after the adventure
I gird them in armor and let them loose. Yacha, Otepec huntmaster Illustrated by Simon Dominic Standard Not Legal Alchemy Not Legal Pioneer Legal Historic Legal Modern Legal Brawl Legal Legacy Legal Comp
Alternatively, you can make as many as you can pay for with their two generic and one red mana sink ability
If you have the extra budget for it, you can also run a Sneak Attack style deck to cheat Slivers into play
Other Pokemon TCG expansions are vaguely based on the main series games, and thus the settings and backgrounds of the cards are in fictional places for instance, Astral Radiance is set in Legends: Arceus Hisui
Its not that cheap