Sure, Gruul can do stax and like any other guild, Gruul can combo but at its heart I think of Gruul as being all about going toe to toe on the battlefield
Getting cheaper and hasty demons is just what the doctor ordered, and this card delivers both
What isnt disappointing is the art
The extra cost of Species Gorger made it the cut, despite its larger body
Honestly, you dont even technically need a lot of the cards that are in the $10+ range to play this deck and have it work fine: Birthing Pod, Miraris Wake, Mana Confluence, and Cavern of Souls are really luxury cards that are great but not really completely necessary to the deck working properly
You can keep it safe with protective equipment like Mithril Coat or utility lands like Rogue's Passage and Maze of Ith