Butterflies

Arctic Blue Butterfly, Brimstone Butterfly, Butter Fly, Funereal Dusky-Wing Butterfly, Monarch Butterfly, Painted Lady Butterfly, and Queen Alexandra's Birdwing are items. They do not share an item slot.

Standard Use

 * Target any player; give a random item in their inventory 10 turns of Frozen.

Passive Effect

 * Every 2 Effects Phases this item spends in a player inventory (beginning on the 2nd Effects Phase), it gives a random item in your inventory the Frostproof enchantment.

Standard Use

 * Give all other players within a 2-space radius of you 1 turn of Fire.

Passive Effect

 * Every 2 Effects Phases this item spends in a player inventory (beginning on the 2nd Effects Phase), it gives a random item in your inventory the Fireproof enchantment.

Standard Use

 * Choose another item you have which isn't Food; give it the Food enchantment.

Passive Effect

 * Every 2 Effects Phases this item spends in a player inventory (beginning on the 2nd Effects Phase), it selects a random item in your inventory that is not Delicious.
 * If the item is not Toast: You give it the Delicious enchantment.
 * If the item is Toast: You transform your Toast into Buttered Toast.

Event Use

 * Feed to the Starving Monster of the Archaeology Dig. Counts as 3 food items.

Standard Use

 * Target any player; you cast a random common or rare targeting Dark Spell on the target.

Passive Effect

 * Whenever you die, you gain 1 turn of Spectral Soul.

Standard Use

 * Choose another item you have; destroy it and gain an amount of Rupees equal to its standard shop price.

Passive Effect

 * Every 2 Effects Phases this item spends in a player inventory (beginning on the 2nd Effects Phase), it gives a random item in your inventory the Sparkling enchantment.

Standard Use

 * Target any player; give them 4 turns of Soul Speed.

Passive Effect

 * Every 2 Effects Phases this item spends in a player inventory (beginning on the 2nd Effects Phase), it gives a random item in your inventory the Soulbound enchantment.

Standard Use

 * Choose one option.
 * [Revive]:
 * If you are Dead and have at least 12 removable enchantments on items in your inventory: You remove 12 random removable enchantments from items in your inventory, also you revive.
 * If you are alive or have less than 12 removable enchantments on items in your inventory: Nothing occurs besides this item going on cooldown.
 * [Win the game!]:
 * If you are Dead and have at least 100 removable enchantments on items in your inventory: You remove 100 random removable enchantments from items in your inventory, also you revive, you meet an alternate win condition, and you gain a Death Immunity Buff which cannot be removed.
 * If you are alive or have less than 100 removable enchantments on items in your inventory: Nothing occurs besides this item going on cooldown.

Passive Effect

 * Passively grants Ethereal Heart.
 * Every 2 Effects Phases this item spends in a player inventory (beginning on the 2nd Effects Phase), (up to) 6 random items in your inventory are chosen; the chosen items each gain an independently decided random enchantment out of a category they don't currently have from the following: Delicious, Ethereal, Fireproof, Frostproof, Soulbound, Sparkling.

Items

 * Cocoon

Any Butterfly excluding Queen Alexandra's Birdwing

 * Generic Living item-givers

Events

 * Catch with Bug Net at Gandalf, or in The Jungle

Items

 * Use Evolution Stone on Caterpillar or Cocoon.
 * Catch with Bug Net standardly

Arctic Blue Butterfly

 * Enchant a Cocoon with the Frostproof enchantment and no other relevant enchantments.

Events

 * Catch with Bug Net at The Glacier.

Brimstone Butterfly

 * Enchant a Cocoon with the Fireproof enchantment and no other relevant enchantments.

Butter Fly

 * Enchant a Cocoon with the Delicious enchantment and no other relevant enchantments.

Funereal Dusky-Wing Butterfly

 * Enchant a Cocoon with the Ethereal enchantment and no other relevant enchantments.

Events

 * Catch with Bug Net at The Haunted Mansion's Graveyard.

Monarch Butterfly

 * Enchant a Cocoon with the Sparkling enchantment and no other relevant enchantments.

Painted Lady Butterfly

 * Enchant a Cocoon with the Soulbound enchantment and no other relevant enchantments.

Queen Alexandra's Birdwing

 * Enchant a Cocoon with the Delicious, Ethereal, Fireproof, Frostproof, Soulbound, and Sparkling enchantments.

Strategy

 * Angel Doll can give all of your items the Unremovable enchantment, making it a very fast way to rack up enchantments for Queen Alexandra's Birdwing.
 * Magic Affinity's Talent allows racking up enchantments fast for Birdwing if you can cast a lot of Spells, such as with Tendril Of Yogg-Saron, Funereal Dusky-Wing Butterfly, and Wand Of Wonder. Be careful, though; Dark Spell Immunity or Spell Immunity is recommended to avoid Liquidizing the Birdwing, especially if using Tendril.
 * Hammer Of Hephaestus in particular can let you carry 2 Tendrils at once.

Trivia

 * TBD