This battle would go on forever. It would be brutal and awesome! I think that after quite some time, Etrigan would get bored of Grundy always getting back up like Rocky Balboa and eventually unleash absolute hell (pun intended) on him to finally get the win.
Grundy may be physically stronger than Etrigan but Etrigan has a better mastery of magic. If they just started punching each other, Grundy would win. If Etrigan used his brain and magical experience, he would probably have the upper edge. He probably couldn’t -ahem- find a permanent solution but he could trap Grundy, send him somewhere he isn’t getting back from easily, or injure him enough that he is going to take a while to heal.
(This is also assuming it is not New 52’s earth-2 Grundy who I think would probably win because of his connection to the Rot).
Quite the battle again this week and as @NYJt3 said it is pretty tough deciding who would win.
Etrigan sure would appreciate the fight that Grundy would bring, and coming back again and again is an interesting aspect.
Could Etrigan put down Grundy for a long enough time to be declared the victor? Quite possibly… Or… Could Grundy make Etrigan say his famous final rhyme in Justice League Dark: Apokolips War?
Well… What I do know for sure though is who @stefanie.m would choose!
Depending on what Grundy we have. If he came back clueless it’s a no brainer, pun intended . But even if he came back smart; Jason Blood was a Knight of the round table. Grundy was a gangster who used weapons more than fighting skills. Either way, I say hellfire wins out.
This is one fight that I’d be both really excited to see portrayed more and a bit nervous. It would probably be rough and exciting, but could also be pretty gruesome and brutal.