Strictly at a theoretical standpoint, INT birds and hybrid INT birds are by far the worst possible build you can even attempt to create in Pocket Legends. I tried a lot of respeccing and equipment testing and attempted to write a comparative essay between full DEX, hybrid DEX/STR, and hybrid DEX/INT but later scrapped it when I realized how much INT birds suffered in PvE (and probably will in PvP too). The difference is much more noticeable at upper leveled campaigns.

INT birds are like race cars with square stones for tires.