I believe Nidus needs an Augment for his link ability. Also please get rid of the Larva burst augment and just make it a part of how base Larva functions, it's not like there's but maybe one subsumable ability for helminth that has access to toxin damage anyways. Now feel free to comment on this because I want to know if I'm wrong but Nidus struggles alot with surviving high level content without shields or overguard, so I suggest make his link augment when it attaches to enemies you can hold down the button to siphon health from them and like every 10 health is 1 armor point and it decays over time like Atlas, or it fuels a secondary damage reduction meter. That decays like Citrines, use on allies to siphon health from Nidus to allies to fuel their damage reduction/ heal them.