The magnification of the cards is also off
Since all the combos require my commander to instantly win, a quick n' easy way to do this would be just to swap Niv-Mizzet, Parun out with a noncombo commander and call it a day: Niv-Mizzet, Dracogenius is a straightforward swap if you still want to keep The Firemind in your command zone, or you can switch to another Spellslinger commander like Kaza, Roil Chaser
Obscura Interceptor sees competitive metagame play in 1 format(s): Commander
The ramp decks are easily built from main cube cards however the elf deck uses a couple of much more niche cards you rarely see in non-tribal drafting cubes
Kess, Dissident Mage Cards that let you play spells from your graveyard have always been well-liked in Magic
Number 67 Language English Legal Formats Commander, Legacy, Modern, Vintage Not Legal Formats Alchemy, Brawl, Competitive Brawl, Historic, Pauper, Pioneer, Standard, Timeless