Fischers art has been seen in MTG since the late 90s, so producing stellar art is nothing out of the ordinary (see Imperious Perfect and Diabolic Servitude)
Niv-Mizzet, Parun Niv-Mizzets standout strength is turning every card drawn and spell cast into direct damage , allowing Dragon decks to win without relying solely on combat
For a just a 2-mana investment, you unlock a 1/1 body with a great enters-the-battlefield trigger
Spectral Denial Spectral Denial is another call back to another Khans of Tarkir card, [[Stubborn Denial]]
Im counting Sweet-Gum Recluse as a Big Spider because of its mana cost
While the Historic card pool makes this plan less powerful than in other formats like Modern, mostly because we don't have Temur Battle Rage or Assault Strobe, we can still put together a very aggressive Kiln Fiend deck in the format