Luckier Tooth

It automatically restores Life once after a fatal hit, with no timing or room-clear condition.

Use it when

Level it early and equip it after the opening god is secured when one extra recovery can preserve a clear.

Limit

After it triggers, it provides no second recovery and should be replaced at the next cabinet.

If it is absent

Use Silken Sash or Ghost Onion when preventing steady room damage is more valuable than recovering once.

When to replace it

At the next keepsake cabinet, replace it after its Last Stand has triggered because the spent keepsake adds no second recovery.