The main cards of note here were Yata-Garasu, Fiber Jar, Raigeki, Harpies Feather Duster, Delinquent Duo and Imperial Order
Ponder gives you far greater control over the top of your deck in one package and sees more cards than Preordain, resulting in an incredibly powerful cantrip
I mean, when you are choosing between a sweet spell or creature and another boring old land, the nonland spell often seems like the right choice
Archfiend Soldier
I think part of it is TCGPlayer factoring in availability, I know Radiant Greninja is available in two sealed products (the Origin Forme Palkia VSTAR League Battle Deck and the Quaquaval ex Deluxe Battle Deck) and Astral Radiance packs while the version of Radiant Charizard reprinted in the Prize Packs is only available in Crown Zenith
Draw 3 cards, then discard 2 cards