mtg all niv mizzet cards Niv-Mizzet, Parun CARD DRAW INSTANT SORCERY Spells Magic Custom Co – CommanderComplete Whenever a player casts an instant or sorcery spell Niv-Mizzet, Parun (Ravnica Remastered)

More immediate and reliable cards in hand also works much better with Molten-Tail Masticore

(2015-11-04) If you don't cast one of the copies (perhaps because there are no legal targets available or you don't want to), the copy will cease to exist

I've seen people just decide not to cast their second Swords to Plowshares because they had one in the graveyard already

Artisan of Kozilek

Alternately, if a game is taking forever and you're really not into it, go ahead and cast this baby

There were no good answers to a Frenetic Efreet, only answers that worked half the time, so as long as you weren't far enough behind that he was ignorable the Efreet was always effective