It will be unlocked in 2 years.

Was just added on JP so 2 years later unless they give it early, which I doubt.

Looks like the feature is so new, it didn't even make it to the event page yet 😋

Well, I hope they'll implement it early, as they've done with other updates.

I can now start to seriously aim for bond 15 for some servants and don't have to use lowest bond anymore...

With this Skill, I now longer have an issue with using the few level 100 Servant that I keep but had never really used that much. (o˘◡˘o)

It's a feature that comes with the Grand Servant, so I doubt it will come to NA earlier

As long as the grand servant is not the only one profiting, there's no reason to link this feature with that update and not give it to us next year.