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The Trainer card has consistently maintained its value compared to other collectibles on this list
Aside from being a human, which is a very relevant creature type in Commander, Modern and basically every other MTG format, Esper Sentinel is good because it reads: Whenever an opponent casts their first noncreature spell each turn, draw a card unless that player pays X, where X is Esper Sentinels power. Its a bit like Rhystic Study, but the cost can be far higher if youve got things that make humans stronger or you can put +1/+1 counters onto Esper Sentinel
Demon of Dark Schemes Demon of Dark Schemes is a pure death trigger, unlike the more expansive Aetherworks Marvel
Maybe a fallow set with a return to form later this year isnt a bad idea
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