Well then... This card...
You know, as one of the 2 non-black Demons in Magic (the other being Oni of Wild Places), this card doesn't do a very good job at proving that off-colour demons could work. Let's look at everything this card does. It's got super-Devour 1. That's it. And, that's not necessarily terrible since Devour cards do work in certain decks. Let's try putting him in some some decks. How about Goblin token spam? Goblins love getting eaten! Well, for the same mana cost you could be running Clickslither and can swing that turn or you could put in Voracious Dragon for one more and do a ton of damage that turn. Maybe Saprolings? For an extra green mana you could replace this card with Thromok the Insatiable and have a tank for the same creature cost. Maybe a deck with a lot of death and Morbid triggers? Sorry, but Phyrexian Altar will always do the job better than this guy. In short, this card is really bad. For the low, low price of 3 permanents, you can have a Hill Giant!
Pros: Works with death and Morbid triggers
Cons: No evasion, no haste, many other cards work a lot better, requires sac to live
Replacements: Any of the other 6 mono-red Devour creatures