Cursed Equipment is a recurring set of equipment seen throughout the Dragon Quest games. It is comprised of weapons and armors that are powerful, but curse the wearer when equipped. In addition, they can harm the wearer in battle. Once equipped, the only way to remove it is go to a Church and pay the priest to use benediction on the person wearing it.
In Dragon Quest the hero can obtain Cursed Necklaces and Cursed Belts which when equipped, choke the character and drain his health, requiring a priest to uncurse. They can be sold for a good amount of gold.
Dragon Quest II
Cursed Armor and the Sword of Destruction debut in DQII. Dropped by powerful endgame monsters, they sport the highest stats in the game but curse the Hero of Midenhall who can equip them. There is also a Demon Tail item that is dropped by monsters that also curses anyone silly enough to equip it.
Dragon Quest III
Cursed equipment is seen in Dragon Quest III. The Sword of Destruction, The Pharaoh's Claw, The Devil Armor, Sorrow Shield, Noh Mask and Misery Helmet are all cursed artifacts the Hero can acquire over the course of their journey. Like their counterparts in DQII, many of these items grants great defensive and offensive stats but in exchange they cannot be removed without the aid of a priest and inflict harmful statuses on the wearer.
Dragon Quest IV
Cursed equipment is very rare and powerful in Dragon Quest IV, they are even the strongest, some stronger than the Zenithia Equipment (but still weaker than the Pandemonic Equipment). They are very strong, but can hurt the wielder, sometimes even zero out stats, and, in rare occasions, kill the wielder. Psaro the Manslayer is the only party member who safely equip them.
Dragon Quest V
Cursed equipment is seen in Dragon Quest V.
Dragon Quest VI
Cursed equipment is seen in Dragon Quest VI
Dragon Quest VIII
Cursed equipment is seen in Dragon Quest VIII. While having the same effects as cursed equipment in other games, the player can choose use alchemy to combine them with Saint's Ashes to turn them into equipment that is safe to use. For instance, by combining a Skull Helm with Saint's Ashes, the player can create a Sun Crown.
Dragon Quest IX
Cursed Equipment, as they appear in Dragon Quest IX, can have varied effects from having permanent confusion to damage being reflected back onto you, and usually cannot be unequiped unless Benediction is used on said cursed character.