pokemon card gengar TCG 07/07 NM Gem Pack Vol.3 Chinese Captured in a crystal Gengar (70/214) [Sun & Moon:

While some effects are capable of producing numerous treasures at once, Xorn is at its strongest when paired with repeatable effects that are capable of producing a single treasure token as, in such a case, its controller's treasure production is effectively doubled

Currently, a few days after the set has been released, Secret Rare Chien-Pao EX is going for about 27- 30 (or around $35)

Faceless Haven can tap itself to animate, and then three more W is required to place the counter

Other than that, a four-toughness flash-speed creature is always nice to foil your opponent's attack with, and casting sorceries as instants is also a nice bonus