Flim Flam

The "Flim Flam" enchantment is an enchantment that when applied to armour, will bring bad luck to those who attack you while you have the armour equipped.

Admins can also target a player with the enchantments effects with the /flimflam command, and change a player's luck with /luck [amount].

Effects
Bad luck can cause these effects:
 * Add Bane of Athropods on random items
 * Spawn charged creepers (with 0 blast radius)
 * Give you Negative potion effects such as blindness and nausea. It can also give you jump boost and speed. These effects have extremely short duration, but very high potency (around level 50). Jumping with Jump Boost level 50 is very bad for your health.
 * Encase you in dirt when you put down torches
 * Shuffle your inv.
 * Make about 30% mobs in a 20x20x20 centered around you invisible
 * Cause you to drop your items
 * Add some random Lore to your items
 * Make you mount nearby mobs (except Squid and Creepers)
 * Rename mobs in a 20x20x20 area around you
 * Change the colour of sheep in a 20x20x20 area around you
 * If you are surrounded by air on all sides, creates an ice platform 100 blocks above the ground and teleports you there.
 * Throw snowballs in a random direction
 * Play random sounds
 * Spawn a squid with a custom name and make it your hat
 * Teleport you randomly by throwing an enderpearl as if it were thrown by you
 * Spawn in 0-durability items with random enchants (possible exploit with AM2 Arcane Reconstructor and MFR Auto-Disenchanter)

The effects have different weights, so some are more common, and the really annoying ones, like inventory shuffling happen at all until you get really bad luck. As the effects are applied to a player, their bad luck will gradually decrease. Presumably, the higher the level of the enchant, and the more armour pieces it is applied to, the more bad luck it causes when that player is hit.

Crafting
The Flim Flam Enchantment can be crafted. Crafting a book and an emerald will give an enchanted book with Flim Flam I, two emeralds Flim Flam II, four emeralds Flim Flam III and eight emeralds Flim Flam IV.