With the precedent set, lets move onto the Top 10
Whether it be an engrossing story, a more fleshed out battle system, or even how you obtain monsters, these games are more than worth checking out
Certainly not as high power level, but a solid inclusion for blue decks that want to cast their spells more than once as well as offering your deck a pseudo-second copy of Snapcaster Mage that doesnt cost six mana (were looking at you Torrential Gearhulk)
Bloodghast 5.5/10 This little critter is so convenient you wind up playing him in quite a range of places
The other Infinity Stones are expected to make their cardboard debuts in later Marvel sets like Marvel Super Heroes, likely along with some payoff for assembling them all, so any players with the means to do so are picking up their copies of The Soul Stone now while its relatively inexpensive
SR Trainer cards from the XY era, including Hex Maniac, N, Delinquent, Shauna, Karin, etc