The term Bant refers to one of the Shards of Alara, which are 3-color combinations consisting of a base color (white) and its two ally colors (blue and green)
That could be an Elesh Norn, Grand Cenobite or Avacyn, Angel of Hope you're popping into play for the low price of 3 mana and bouncing a tapped creature back to your hand, which is possibly additional upside with the right ETB creatures
Cards graded as Good typically show clear signs of wear across multiple areas
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Multiple cards sacrifice creatures to grow your board, but the decks not so token-heavy that it can just toss fodder away, and you dont really want to pump up your board at the expense of losing your creatures