I ' m a bit of a world building realist as I think that features on species should make sense . For every feature that we have especially expensive features such as developing several types of diseases to harm creatures that would attack it , there would be an evolutionary cost to it because it costs energy to create it and maintain it . If you ' re interested a bit of realism in your world building , you could use this as a jumping off point for cNmkCgAAQBAJpgPA 266 lpgPA 266 d q e v o l u t i o n a r y c ostoffeaturessourceblotsJ 6 ubVRMcpmsigie 5 RsP 6 s 7 UFuEBsDz 7 LgoPDmAhlensaXved 0 ahUKEwiFtc 7 VzcLQAhWFqJQKHYqLAL 0 Q 6 AEIMDAE # vonepageqevolutionary % 20 cost % 20 of % 20 featuresffalseSorry if this isn ' t your kind of thing though ! <| sep |> Players like Nagbe or if it would have been possible Ozzie Alonso I think is okay though .