Relic
Family's Grace, as far as the sources go
Where it comes from
Konami's product page bundles three in-game items with the Midnight Edition: a Trevor costume, a Sypha costume, and the Family's Grace relic. It is not a chest in a named room. Fextralife's relic list counts it as the one reward item inside the set of 42, which is why the map can show 41 relic pins and the list can still say 42.
A page that claimed to print the effect was blocked when it was fetched, and no second source quoted the text. The effect is unconfirmed. There is no percent, no duration, and no trigger on this page.
What to do in game
If you own the Midnight Edition, read the relic on the equipment screen. That line is the authority until a public source quotes it. Standard edition buyers should not expect the relic in the world. It is part of the $39.99 bundle, not a missable chest.
What I ran into
This is the page I was most tempted to fill. The search volume is real and the effect is not. Leaving the effect blank, and saying why, is the whole article.
Questions
What does Family's Grace do?
Unconfirmed as of 23 October 2026. Konami names it as a Midnight Edition item and does not print the combat effect on the product page.
Can I find it in the castle?
Not as a standard pickup. It is one of the three Midnight Edition extras, with the Trevor and Sypha costumes.