and because Limited play is almost always won on the back of creature combat, finding the opportunities to trade one creature, removal spell, or well-placed buff for more than one creature will pay off dividends
Adding four copies of Hiram and four Pawpsicles increases the draw power and consistency of this deck immensely
The bigger draw is the back
The juice: Elemental spells you cast from your hand have Evoke (4). Lets pause and really look at that
12 Urza, Lord High Artificer (Borderless) - $22.02 It's always great when a borderless card paints a better picture of what is happening in the artwork of a card, partially when it's for a legendary creature with as much history as Urza
But if you have a developed board full of artifacts, you can cast this for four mana, with X equal to zero, and still wipe the board while preserving your life total