Whether youre building around Yoshimaru, Ever Faithful in a powerful combo list or sleeving it up for a casual pod, having access to this card at a fraction of the original price opens up your entire deckbuilding strategy
For sheer number of variants, the Nazgl take the cake with nine different art treatments for the same card - there are nine riders after all
Discover 4 is so much better than drawing a card its similar to why Monumental Henge is better than War Room
You search up Plains equal to the difference in the number of lands, put one in play tapped, and put the rest into your hand
Many of the best equipment and equipment payoffs simply weren't in print at the time, like Colossus Hammer or Sigarda's Aid, and ones that were in print (Stoneforge Mystic, Puresteel Paladin) weren't included because that's how precons roll, I guess
As far as kill cards go, you really can't go wrong with Elemental Eruption