Fresh from the Forge should make your next melee attack have additional phys / fire damage added to it; however, using Void Cleave does not appear to work as the buff does not go on cooldown. Erasing strike does appear to put the buff on cooldown.
I’m pretty sure this is because of the Movement tag on Void Cleave. Patient Doom has the same deal.
However, Echo is also not supposed to work on movement abilities but it does work with Void Cleave. I think the behavior should be both Fresh from the Forge and Patient Doom affected Void Cleave.
Correct, it’s because it is considered a movement skill so it’s technically not a bug. But I agree it is a bit odd, so we’ll look into it.