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Three extra power is nothing to sniff at, while trample ensures that at least some damage goes through
Two Legends [OP-08] brought a pair of major additions to this decks war chest: Jack and Whos-Who
However, it's unlikely this card's value will be equaled by its peers if it remains steady.
The deck then features a number of powerful midgame snakes, many of which generate value through effects such as Vizier (cast creatures off the top), Mystic Snake (counterspell), and Fangkeeper's Familiar (counter/enchant removal/surveil)
Cards in the original Base Set could be Common, Uncommon, Rare, or Holofoil Rare