It became a staple of the format due to how strong it was and how well it could be built around: It's one of Jund's best combo pieces
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
Pokmon trading card scalpers Pokmon fans have a word for those who aren't fans but buy up the cards to sell them at multiples of the retail price: "Scalpers." Whatever true fans think of them, they have to compete with scalpers who often rapidly buy up supply
A nice rounded walker that would be a cube mainstay if it was just one colour but makes the cut as he is none the less but obviously appears in decks far less often.
Your thumbtack Pokmon that is a flying type may have mirror move, peck, drill, and sky attack
