In-game pickup line
“Flight + HP up”
Mechanics
What Holy Grail does
- Increases red-heart capacity by one and restores one red heart.
- Flight lets Isaac cross pits and avoid floor hazards that do not reach airborne characters.
From the game files
What you receive on pickup
Pickup grants
- Red-heart capacity
- +1
Heart values are shown in whole hearts. Character rules and health limits can affect the result.
In a run
Practical note
Check previously inaccessible pickups behind pits once you have flight.
Reference
Game data and sources
The item ID, quality and pool listings, icon, game-file tags, and short pickup line come from the extracted Repentance files. This effect explanation is an editorial summary checked against the references below. Repentance+ can differ. Charge and pickup values shown above also come from the extracted items.xml.
