pokemon card price app what do you use to value your cards? : r/PokemonTCG Pokemon Card Value Scanner and
Description
But in doubt the flashlight test is a pretty good indication of which is which (if you have both of them to compare)

The Ultra Rare versions of Bosses Orders, Canari , Anthea & Concordia , and Black Belts Training have all dropped consistently since release, and even Special Illustration Rare Trainers like Canari and Iriss Fighting Spirit have been flat
Once this central strategy is identified, every card you include should serve to advance that plan

(1) Foil card of random rarity

Banning Vivi Ornitier was the obvious move

If they lean on Find // Finality with fewer planeswalkers, Dawn of Hope becomes a reasonable sideboard card and Shalai, Voice of Plenty looks more suspect