So unless your high-powered synergy cards absolutely demand it, do not play Aegis Automaton
This lil' combo is not only annoying, as it is a snooze fest, and unfortunately, it is still too trusty for the Niv Mizzet, Parun deck to have at least one of the pieces which make this possible
While you might be throwing out an All Is Dust or Austere Command from it once in a while, you're more likely to be playing smaller cards like an un-overloaded Vandalblast
Though identified as a kind of moth, the character's design incorporates elements more frequently associated with butterflies, and has caddisfly-like mandibles rather than a proboscis
Since the creature becomes permanently marked, you can also set up some nice wrath insolation or take things over with your own Damnation