It looks very much like a Hellebore. If the leaves are a bit thick or leathery it definitely is. It looks like a hybrid. It's very healthy. I'd keep it and wait until it blooms.

I'm not convinced it is :-)) The foliage looks like no other hellebore - species or hybrid - that I am familiar with, plus it is unusual to have that many leaf stems on a young plant. You say this was a seedling you rescued in February or March? Awfully big for a year old seedling.

Having said all that, I too would keep it and wait until you see any blooms......