Even if one is countered, though, you'll still have another copy ready to go for your next turn, again, provided that the initial copy resolved successfully
It's an artifact with ", Sacrifice this token: Draw a card.") Whenever a creature you control enters, if its power is greater than this creature's power or its toughness is greater than this creature's toughness, put a +1/+1 counter on this creature and investigate
It basically turns every land you play into Ancient Tomb for a turn while fixing your mana and really going off with fetch lands and multiple land drops
You often see this creature alongside equipment like Batterskull and Kaldra Compleat that are disgusting threats when you play them for
Tragic Slip
I think this will be really solid there, or if you really want to go that old-school control style of just beating people down with one chunky flier as your win condition