Voadam
Legend
I want to agree because I agree with the sentiment on the choice, but the only monsters with rend that I can think of off the top of my head are trolls which don't have the snatch feat. And conversely the only thing with snatch are dragons which don't have rend.Rend was only available for monsters that also had "Snatch". Using Rend was the DMs way of saying "I was given a choice of extra damage or bringing out the Grapple rules, and I have chosen the lesser evil. You will get no save against the extra damage, and you will still thank me for it."