Shield

The basic, Dragon, Jewel, Mirror, and Spiked Shield, as well as the Arctic Aegis and Malevolent Maw, are items. They share an item slot. (Consider all of them to be Shield variants.)

Passive Effect

 * If you are alive and (Non-Holy) Hammer, Hammerhead Shark, Drunkard's Bar, Torch, Sword, Demon Sword, Swordfish, Serrated Shiv, Wooden Stake, Sanctified Stake, Slash, or Axe from Let Me Axe You Something!'s penalty is used to perform a melee attack on you, you block the attack, and you put the melee weapon on cooldown for 1 turn unless it is already on cooldown (or it no longer exists.)
 * If you are alive, all variants of Bow & Arrows fail to affect you.

Effects

 * Jason's Rage can destroy any Shield.
 * Shield Mastery
 * Auto Hammer's Auto Jackhammer

Items

 * Brahmastra, Claíomh Solais, Odin's Shieldbreaker, Chainsaw, and Jackhammer can destroy any Shield.
 * Anvil

Event Use/Passive

 * Prevents death from the Deadly Pyramid's Burning Arrows; the Shield burns unless Fireproof.
 * Increases chance of success when trying to slay The Dragon.
 * Use against The Bear! to lose your Shield and then run backwards as if no item was used.

Item Combining

 * Any Shield + Volatile Oil + Azure Bracelet = Arctic Aegis
 * Any Shield + Dragonskin = Dragon Shield
 * Any Shield + Lovely Crystal + Night Crystal + Happy Crystal = Jewel Shield
 * Any Shield + Demonic Ritual Stone = Malevolent Maw
 * Any Shield + Broken Glass + Dark Crystal + Fairy Crystal = Mirror Shield
 * Any Shield + War Helmet = Spiked Shield

Standard Use

 * If your Shield is not currently raised: Raise your Shield.
 * If your Shield is currently raised: Lower your Shield.

Passive Effect

 * If your Shield is currently raised: Passively grants -2 Speed.
 * If your Shield is currently raised: If you die, your Shield is lowered.

Effects

 * Shield Mastery: Prevents a raised Shield from passively granting -2 Speed.

Items

 * Jackhammer can destroy itself due to an upgraded Shield.

Items

 * ACME Magnet; In addition to attracting the Shield, it has a chance to Incapacitate you.

Passive Effect

 * If your Shield is currently raised: Passively grants Algid Revenge and Frostfire Protection.
 * Algid Revenge: After another player's (Holy) Hammer, Hammerhead Shark, Drunkard's Bar, Torch, Jackhammer, Fish, Banana Fish, Sword, Demon Sword, Swordfish, Wooden Stake, Sanctified Stake, Serrated Shiv, Ethereal Dagger, Chainsaw, non-Amethyst Lightsaber, or Axe from Let Me Axe You Something!'s penalty makes contact with you due to its melee attack, the weapon used to attack you gains 10 turns of Frozen.
 * Frostfire Protection: If an item you have would be burned (or thawed by an effect which normally burns), it instead gains 5 turns of Frozen.

Inherent Effect Tooltips

 * {| class="wikitable" style="text-align: left;

! Algid Revenge Tooltip
 * Basic melee weapons used to attack you with Freeze for 10 turns.
 * Basic melee weapons used to attack you with Freeze for 10 turns.

Legendary weapons are not affected by this.

Category: Buff
 * }
 * {| class="wikitable" style="text-align: left;

! Frostfire Protection Tooltip
 * Items that burn Freeze for 5 turns instead.
 * Items that burn Freeze for 5 turns instead.

Category: Buff
 * }

Passive Effect

 * If your Shield is currently raised: Passively grants Fire Immunity.

Event Use

 * Give to Marceline in Ooo.

Standard Use

 * Consume a Magic Crystal you have to gain 3 turns of Temporary Fire Immunity, 3 turns of Temporary Frost Immunity, and 3 turns of Temporary Poison Immunity.

Passive Effect

 * If your Shield is currently raised: Passively grants Jeweled Protection.
 * Jeweled Protection: After another player makes contact with you due to their melee attack from any basic melee weapon, you gain a random Magic Crystal. Also, if your Shield blocks a hit from any variant of Bow & Arrows, you gain a random Magic Crystal.

Inherent Effect Tooltip

 * {| class="wikitable" style="text-align: left;

! Jeweled Protection Tooltip
 * Basic melee weapon and Arrow hits against you will give you a random Magic Crystal.
 * Basic melee weapon and Arrow hits against you will give you a random Magic Crystal.

Category: Buff
 * }

Event Use

 * Give to Marceline in Ooo.

Standard Use

 * Feed the Shield a non-Food item to summon a random Lesser Demon or feed it a Food item to summon 2 random Lesser Demons.

Passive Effect

 * If your Shield is currently raised: Passively grants Malevolent Maw.
 * Malevolent Maw: After another player's (Holy) Hammer, Hammerhead Shark, Drunkard's Bar, Torch, Jackhammer, Fish, Banana Fish, Sword, Demon Sword, Swordfish, Wooden Stake, Sanctified Stake, Serrated Shiv, Ethereal Dagger, Chainsaw, or non-Amethyst Lightsaber makes contact with you due to its melee attack, the weapon used to attack you is eaten by the Maw, and you summon a random Lesser Demon (or 2 random Lesser Demons if the item was Food.)

Inherent Effect Tooltip

 * {| class="wikitable" style="text-align: left;

! Malevolent Maw (Buff) Tooltip
 * Basic melee weapons used to attack you with will be eaten, causing you to summon a random Lesser Demon.
 * Basic melee weapons used to attack you with will be eaten, causing you to summon a random Lesser Demon.

Legendary weapons are not affected by this.

Category: Buff
 * }

Passive Effect

 * If your Shield is currently raised: Passively grants Spell Reflection and Silenced.
 * Spell Reflection: This effect reflects any targeting Dark Spell cast on you by another player or in a standard non-player spellcasting event back at its source. Also, this effect protects you when you pass through the Cursed Gate in the Archaeology Dig.

Inherent Effect Tooltip

 * {| class="wikitable" style="text-align: left;

! Spell Reflection Tooltip
 * You are currently protected from targeted Dark Spells. Any targeted Dark Spells aimed at you will reflect back to their caster.
 * You are currently protected from targeted Dark Spells. Any targeted Dark Spells aimed at you will reflect back to their caster.

Category: Buff, Unremovable
 * }

Event Use

 * Use against the Demon Eye of the Archaeology Dig; can be done even if the Shield is on cooldown.

Passive Effect

 * If your Shield is currently raised: Passively grants Spiked Protection.
 * Spiked Protection: After another player makes contact with you due to their melee attack from any basic melee weapon, you give that player 5 turns of Bleeding. Also, if you are affected by another player's Bear Form: Maul, Snake Form: Venomous Bite, or Pegasus Boots, you give that player 5 turns of Bleeding.

Inherent Effect Tooltip

 * {| class="wikitable" style="text-align: left;

! Spiked Protection Tooltip
 * When someone attacks you with a basic melee weapon, they will Bleed for a few turns and suffer reduced Speed.
 * When someone attacks you with a basic melee weapon, they will Bleed for a few turns and suffer reduced Speed.

Legendary weapons are not affected by this.

Category: Buff, Unremovable
 * }

Other Item Use

 * ACME Magnet; In addition to attracting the Spiked Shield, it has a chance to Incapacitate you.

(Basic) Shield

 * Generic item-givers

Events

 * The Market
 * The Lever's Reinforcements Activation Panel
 * Treasure Inside The Cave
 * Use Holy Water against A Z-Z-Zombie! in The Haunted Mansion's Graveyard
 * Large Wooden Crate in The Cellar of The Haunted Mansion
 * Wishbone Wish
 * Jackpot in The Wild West
 * The Blacksmith in Winterfell
 * Archaeology Dig Lv 1 reward
 * Dungeon Crawl Lv 1 reward
 * Improbability Device (event)
 * Dig with Shovel at the Archaeology Dig, in Ooo, or in Westeros
 * Drink Liquid Luck
 * Random Drink's Liquid Luck subevent
 * The Dragon's Hoard
 * Shield (event)
 * Choose An Item Phase events
 * Oh Really?
 * Questions!?
 * Pawn Shop
 * Early Reinforcements
 * Reinforcements!

Items

 * Anvil
 * Peace Dove

Effects

 * Marieke's Magic
 * Guardian

Any non-basic Shield

 * Generic great item-givers

Item Combining

 * See above under Item Combining under Any Shield under Usage

Strategy

 * TBD

Trivia

 * TBD