Final Skybuilders' Tool

[Jojoya]

they did say in the LL that there would be even more crafter updates to come in 5.5. you may need the skybuilder tool for those perhaps?

I doubt they'd require the Skybuilder Tools for the new Expert recipes any more than relic weapons are mandatory for any content. They might offer some advantage depending on how much Progress requirements increase.

But unless the tools they said would be a reward are amazing (possibly secondary tools some were hoping to get with the Skybuilder tools), I suspect people are going to ignore yet another Expert grind.