These abilities are generally only relevant on the battlefield, but there are occasionally abilities that are relevant in other zones
However, if you put this in a deck that can boost the power of Esper Sentinel - say, Humans in Modern - this is going to be a 2/2 or more, which means youre probably going to draw an extra card most turns
, Sacrifice this land: Search your library for a Swamp or Mountain card, put it onto the battlefield, then shuffle
A perfect condition $100,000 card evaluated by Professional Sports Authenticator, the premier authentication and grading company, might only get 1% or 2% of that value in a much lower condition
Overpowering Attack will be great at three mana, but its also perfectly fine for five mana in decks that care about extra attacks