This is probably going to see a decent amount of play
If you have a way to exile it from the graveyard before the persist ability resolves, say with Scavenging Ooze, you can fizzle the ability to prevent the creature from coming back
if the original creature you copied hits someone else entirely, you're still the one who draws the card
How To Use Casualty Casualty is a ludicrously powerful ability because the cost to copy the spell is sacrificing a creature, something lots of decks want to do anyway
Number 2 Language English Legal Formats Commander, Legacy, Modern, Vintage Not Legal Formats Alchemy, Brawl, Competitive Brawl, Historic, Pauper, Pioneer, Standard, Timeless Rulings (8/7/2020) A game that restarts immediately ends the preceding game
If youre running a dragon commander with Rakdos in its identity, then you can easily slot this in as a combination ramp and value engine