This app will let you search the NDCA open evidence backfiles (from 15/16) to find a particular card. To test I searched “ontology first” and sure enough like 5 cards to answer ontology first popped up.
What would you use this for? Probably most useful for quickly finding that 1 card you need rather than an entire file. For example, you are cutting a disad and need an impact to platypus extinction- this is a good way to see if there is one out there.