If you just want a clean, straightforward one-turn kill, Chandra's Ignition is a pretty good option, able to smite every creature and player in such dramatic fashion that they probably won't really mind
Cait Sith, Fortune Teller Cait Sith, Fortune Teller meshes well with reds cast-from-exile payoffs, like Flaming Tyrannosaurus and Nalfeshnee
You also have Flowerfoot Swordmaster and Valley Questcaller as additional lord effects, Might of the Meek to push through damage, and potentially Dewdrop Cure to recur your team
New-to- Magic Jumpstart and Commander Cards Wilds of Eldraine Set Boosters and Collector Boosters have a few additional cards to uncover that don't appear in Wilds of Eldraine Draft Boosters
I try to keep these Standard-legal and use these to teach the next generation of Magic players in my LGS every last Friday of the month