The nexus defences have been a great addition, but I think some of them should become a lot more impactful and something that needs to be prominently played around rather than just a mild inconvenience that some of them can be. Sky temple in my opinion is the best example because it is prominent and acts fast. The nexus defences of most of the other maps are usually too slow to actually have an impact on the fight. Best example of being too slow is cursed hollow and warhead junction. The one that probably needs most changes is Hanamura, it can be completely ignored. Also please make black hearts bay nexus defence do big dmg rather than knock them around. I stunned a group of enemy players as Jaina, saw the cannonball coming down, then just disappointment. Overall the nexus defences are all really cool and a good addition. In my opinion, most of them just need some buffs.