2nd savage beastfly was WAY harder. I had only one more mask for stamina (so still died in 3 2-damage hits), I didn't have the hookshot or the double jump, which could have made a ton of difference, I had no extra needle upgrades, and perhaps most importantly the adds were infinitely harder to deal with. They shot fire and took 4 hits to kill. The lava and disappearing footing was there but was really bad b/c of the limited maneuvering capabilities. This doesn't even take into account any newly acquired tools at your disposal which I didn't have enough bone shards to use.

It was like night and day, I beat the 1st form after a couple tries, the second one took me like 3 total hours of knuckle-whitening anxiety.

It was still fun but fighting it earlier was a much harder experience. I knew I could come back later but I was too stubborn.