these dudes, in my opinion and many others, are better than rexes. sure, rexes are super cool-looking and popular and powerful as well, but the spino is so much less resource consuming. it takes less than half the amount of tranq arrows/darts to knock out a max level spino than you need to knock out a max level rex. also, if you are in battle and you happen to be using a spino, make sure to touch water while on the spino. the water buff increases your chances of winning by a lot. the only downside about spinos, in my opinion, is the saddle. compared to the rexes saddle, the spino saddle is a tad more expensive than a rexes saddle. up this if you found this useful! -J