mtg niv mizzet visionary commander deck Niv-Mizzet, Parun Flying You have no maximum hand size Niv-Mizzet, Visionary (Promo Pack) (Foundations)

Sometimes, the best strategy in Constructed is just to play all the most powerful cards, and these times, and the decks built in this manner, are considerably more like Sealed Deck

Either you destroy a multicolored permanent (which are everywhere) or you have a silver bullet hate option for Voltron strategies

At the beginning of the Cursed one's upkeep they either sacrifice a dork or a planeswalker or lose a massive 5 life

Swan Song is perhaps the most efficient counterspell in Commander

Several times over, in fact

Now, it'll be better in a game where you have allies or friends built into the infrastructure, like Two-Headed Giant or Secret Alliances