most expensive sliver cards mtg Queen Stronghold NM-Mint Reserved List ENGLISH Magic The Gathering Toxin Sliver from Legions (2003).

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

The odd charm has a bit bolted on but it is typically for emergencies only as they are so inefficient

Richard Garfield had introduced typal themes in Limited Edition (Alpha) , and they were mostly focused on creatures helping a specific creature type, usually buffing them in some way

It is useful when you can drip feed dorks in you were saccing off anyway and milk a bonus damage out of doing so