Belakor, the Dark Master Be'lakor, the Dark Master draws unseemly sums of cards with its enters ability, which can be further exploited via cards like Displacer Kitten and Thassa, Deep-Dwelling retriggering it
both sets save you $7 over the individual decks
Even the current best deck, Kashtira, doesn't like being hit by it, even if it doesn't end their turn, as it can prevent access to Birth, which hurts their ability to grind
If you want the deeper story on why old rares command what they do, see The Original Dual Lands: A Collector's Value Guide
All of the Eeveelutions are absolutely fantastic, but the one I truly love is Vaporeon
Swooping Pteranodon Swooping Pteranodon buries the lede on its humor, saving the punchline for the end