Frogs vs Cats vs Field Hospitals
Frog (formerly rabbit) Militant Clearing: 2 frogs, 3 cats
Cats battle: 3-3
Both Frogs and the Enclave are removed, as well as two cats.
Cat player has no Frog cards in hand.
May the Cat player spend a Rabbit card for Field Hospital, since the Militant Enclave is now gone?
Or do all those things happen simultaneously and they could only have spent a Frog card?