Special Thanks to TrueTitan, who compiled this list!
The linked Google Doc is a list of useless support spirits to put on your amiibo – not necessarily ones that have no effect, but just ones that serve little to no benefit in battle compared to their counterparts. If you’re training an amiibo and you want to put unorthodox spirits on it, check this list first to make sure you’re not wasting slots!
https://docs.google.com/document/d/1QY9lhPUZuPpSyiScIbn-mOnzRORi9XA0WHKkdJJwsnE/edit?usp=sharing
Amiibo Doctor 