DC 27 Thievery (master) to painstakingly remove the lintel without triggering the magic, or dispel magic (4th rank; counteract DC 25) to counteract the rune
Attack
DC 23 Will save
Reset
The trap resets when the door is shut.
Curse the Intruders (Reaction)
Curse
Divine
Trigger The seal on the tomb is broken from the outside; Effect Each living creature within 60 feet must succeed at a DC 23 Will save or be subjected to the pharaoh's curse. A cursed creature takes a -2 status penalty to Fortitude saves, and any natural or magical healing it receives is halved. The curse remains until removed by cleanse affliction or similar magic.
Reset
The trap resets when the door is shut.
Source: Pathfinder GM Core, p. 103
Bring Pharaoh's Ward into a Pathfinder 2e game with The DM Screen.