masquerain pokemon card Surskit & Advanced Action – JAB Games13 Colorless Artist Masquerain - 002/182 (Reverse Foil)

It's due to their unique appearance and rarity

Because of this, nearly every Commander deck will benefit from including ten or more cards with ramp effects

While Paradox Rift had already done that gimmick, Temporal Forces still had plenty to set it apart, like the reintroduction of ACE SPEC cards

Credit: Wizards of the Coast Synth Eradicator Steel Mentor: As mentioned in Nick Valentine's entry above, Synths are advanced androids developed by The Institute, the descendants of MIT scientists who holed up underground and have been playing around with advanced tech as the survivors on the surface fought tooth and nail to survive