49 Great Ball [Sun & Moon 119/149] Item 0
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
When an opponent attacks your Life cards and removes one, any Yellow card in your Life deck with a Trigger ability fires
Thats because, aside from the Infinity Stone debut for the new set, one card is already up for a market price of $1,250 on TCGPlayer
According to his calculations, the minimum amount of lands you need for a 90% chance of 3 lands by turn 3 and a 74% chance at 4 lands by turn 4 is about 36 lands