The Hero ability triggers if the Hero enters the last (rightmost) Room of your dungeon. It triggers before the Room’s ability or damage can take effect, so the Hero survives your dungeon.
When the Boss ability is used on a Room stack, the Room underneath becomes active but does not deal damage to the Hero. However, you can still use Room abilities from the now revealed Room.
The damage from this Item’s Boss ability only applies to one Hero and does not carry over to the next Hero that enters the Room.
This card may reference the protagonist from Hudson Soft's Bomberman games.