Amazones will still be viable.
i often throw away an onslaught with princess for her effect as you really dont need 3.
You can find good replacements for econ.
Multiple econ on such an extreme swarm deck as amazones was a bit crazy to begin with.
Amazones is probably almost the least nerfed out of the nerfed decks.
The least nerfed being Georgia.
If u run a fusion version with dangerous you don't need 3 celestial. Econ is a loss but not a big deal since most of M-Heros decks were using one or two at most.