That's incredible value in terms of card and tempo advantage, especially for the low cost of just three mana
They all contain Ichor Elixir and a reprint of Fractured Powerstone
Especially given the presence of cards like Dark Ritual, four is easier to hit, and even in fair decks, that one turn really does make a large difference. That took care of Aarakocra Sneak, Stirring Bard, and Vicious Battlerager
The deck doesnt include much interaction in the way of noncreature spells, so Wasitora, Nekoru Queen, Drakuseth, Maw of Flames, Lozhan, Dragons' Legacy, and Steel Hellkite help interact with the board
Walls can be useful here, particularly the ones that draw cards if we have access to some blink synergies
As with Muraganda Raceway, this one is fairly speculative