DM Pedestal

The DM Pedestal, when right-clicked or given redstone power, will activate an effect of various alchemy power items. The GUI can be opened by crouching and clicking on the pedestal. The pedestal can only hold one power item at a time, and when right-clicked, it activates an ability unique to each power item.

The Pedestal may not always work in multiplayer.

Uses

 * Ring Of Ignition
 * Harvest Goddess Band
 * Black Hole Band
 * Archangel's Smite
 * Volcanite Amulet
 * Evertide Amulet
 * Talisman of Repair
 * Watch of Flowing Time
 * Soul Stone

Archangel's Smite
Fires arrows at any Mob that comes into range. (Press "R" to have a continious stream of arrows.)  Note: it uses EMC 

''' May not work in SMP. '''

Black Hole Band
Drags items and mobs towards the pedestal.

Harvest Goddess Band
Boosts all crop growth and harvests them.

Ring of Ignition
Sets mobs (aggressive or non-aggressive) in range alight.

Evertide Amulet
Upon placement, rainfall will never stop until you take it out again.

Swiftwolf's Rending Gale
Fires lightning at mobs (aggressive and non-aggressive)

Talisman of Repair
Repairs items in all players inventories nearby.

Soul Stone
This will heal all players within the 8x8x8 area of the pedestal.

Watch of Flowing Time
Speeds up all machines (globally) by 7% (Note: This does not work in Multiplayer, for obvious reasons.)

Volcanite Amulet
Upon placing this into the pedestal, rainfall will never occur.

Trivia

 * If you load a world created with a future version of Minecraft rather than 1.2.5, Cocoa Pods on trees will sometimes convert to Dark Matter Pedestals. This is because Cocoa Pods weren't added until version 1.3.1.