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
Bloodbraid Elf Starting at the top and no surprises that it is Bloodbraid Elf, a 4 drop that is apparently too good even for modern
No one wants to have their The Ur-Dragon taken down by a 1/1 cast by for a single
MTG.Design homepage MTG.Designs create-a-card page is simple and has top-to-bottom forms to fill out via various text boxes and drop boxes to complete your card
You will need to have some basic lands in the deck for Fertile Footsteps, even though none are in the sample list
Instead, the reason why this set was determined to be Modern legal, according to Rasmussen, is so as many MTG players can play with the cards from this set as possible