While Terapagos' downward trajectory is likely to remain constant until this card bottoms out, Double Rare cards aren't typically expected to retain value, especially once they rotate out of use in the TCG
Card advantage and ramp on a commander can be kind of boring, as weve seen with a few Simic legends (you know who you are)
Mega Charizard X ex SIR - $820 Easily the best SAR card in the Mega Evolution era so far, this version of Charizard is, frankly, stunning
Using an indestructible creature to block a lifelinker will still result in the opponent gaining life, and blocking a creature with wither will still cause -1/-1 counters to be placed on your creature (which could actually kill it!)
While it may not command the fiery presence of Charizard, its refined grace makes it a favorite for collectors who value artistry over raw power
Naya Charm - D+ A fair modal card (and I normally love modal cards) that seems like it may have been designed for limited over anything bigger or more competitive, Naya Charm isn't terrible, it just isn't that helpful as a one time effect