The spino does more damage but this is better spino is pure f##KING s##t at combat meanwhile the Rex does good damage and good health their normal health when wild is higher than the bronto it's like the sword and shield of ark being incredibly reliable for late game and supremely powerful for midgame so this is a tank build for ark players despite being weaker than the giga this thing is still the first thing we turn to in boss fights what also make it good is that there are things more power full than it but still considered the best