Add Holy to weapon

[Frodie]

How do you add effects (like holy) to a weapon?

Thank you

[Willot]

Well it depends, if a weapon does positive damage then add it to the damage type of the weapon, So instead of a longsword doing slashing damage it would do slashing,positive

If you want to say it does EXTRA damage to undead, you may add an "effect" to your character in the combat tracker that reads: IFT:TYPE(undead);DMG: +1d6 positive

Strange as it seems you dont place an item's effects on the item BUT on the character.

See here PF2E Effects