(10/2/2025) "Flashback [cost]" means "You may cast this card from your graveyard by paying [cost] rather than paying its mana cost" and "If the flashback cost was paid, exile this card instead of putting it anywhere else any time it would leave the stack." (10/2/2025) You must still follow any timing restrictions and permissions, including those based on the card's type
Creatures like Piper of the Swarm, Totentanz, Swarm Piper, and Ogre Slumlord can ensure your field is consistently full of rats, and the nonlegendary Piper even lets you use them to steal your opponents creatures
This Parun debuted in 2018s Guilds of Ravnica set and marked the third-ever Niv-Mizzet card after 2006s Niv-Mizzet, the Firemind and 2012s Niv-Mizzet, Dracogenius
Its a bit of a weaker Oblation and a weaker Swords to Plowshares
If Llanowar Elves is level zero of the format, then Supreme Verdict is level one
Thankfully, as the pasted-over ruling notes, you can't have more than one of this sorcery in your deck