mtg warhammer 40k collector commander decks Magic: The Gathering: 40,000 or harnessing the chaotic powers of the Warp Warhammer 40K MTG Commander Deck:

The Triomes define the far limits of what you can do in Modern in a way that represents untapped and near boundless potential

Stripping away the abilities of creatures it reanimates feels like a necessary safeguard that severely limits its utility

Join iconic characters like Cloud Strife, Sephiroth, and many more, fight alongside powerful Summons, and let Moogles guide you on your journey

While that's not the most terrible idea, the likelihood in a Niv-Mizzet deck is that the other spell you're casting is a burn spell that could do the same, and I have to feel that you're going to be better off casting it by itself, rather than putting all your eggs in one basket