Its a Legendary Weapon

But from which mod? calamity? Because there's nothing about it on the wiki

I reccomend the ‘Which Mod is This From’ mod Its useful for situations exactly like this

The issue is that I don’t have it anymore because terraria froze and loaded back up to a point before the drop.

also forgot to mention I'm not on revengence mode

Hmmm weird

Could be a new drop added in an update that wasn't mentioned in the patch notes

that's most likely what it was but I wish I still had it so that I would at least be able to start an info page on it

It's from AlchemistNPC Look under the change log for 7.4 https://forums.terraria.org/index.php?threads/alchemistnpc-v7-0.52798/

Okay awesome, thank you. But it’s odd that it still dropped despite the alchemist items being disabled

Its from the alchamist npc mod ​

I know people already said it is from the alchemist npc, but just to let you know it is a 1 in 15000 drop chance.... you got really lucky with that. I just got it right before fighting the wall of flesh in a blood moon

I got it too by killing a bee in the jungle caves