This extreme rarity is beginning to be recognized by the market
Lightning Greaves, Shuko, and Umbral Mantle don't have the more flashy effects (sans Lightning Greaves), but you play them because they can equip to a creature for no mana
That trample means if you kill the blockers in the first strike damage phase, the player takes damage in the normal damage phase
Since we're playing an already okay two-drop with Naban, Dean of Iteration, we can get away with playing a few really good enters-the-battlefield Wizards and filling the rest of our deck with other cards and still have Naban, Dean of Iteration be worthwhile
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Much like Blasphemous Act in red, this card gets cheaper for each creature on the board
