Relics
Serpent's Tail
When your HP would run out, heal to 50% of your max HP instead. Works once per run.
Numbers from the current game data
Strategy & Tips
Tactical noteThis is one safety net, not sustain. It lets a risky boss line survive once, but you should still plan healing and Block after the revival because the relic cannot trigger again.

Soul Strip: Waifu Card Battler
Check cards, relics, and enemies before your next run. Every number comes from game data, and the Steam demo is free.
Wishlist on Steam