Liliana is so versatile that she shows up in aggressive decks like Death's Shadow, midrange decks like Abzan, and control decks like 8-Rack
Even if it doesn't win every game, few Magic: The Gathering players are sad to open a copy of Impact Tremors
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
SPELLSTUTTER SPRITE This list needed a representative for the sub-category of counter-creatures, and while I could have chosen Mystic Snake for historic precedence or Frilled Mystic for recency, I think Spellstutter Sprite is the most interesting of the bunch
