Custom Enchants
This enchants can not be found using enchantment table. You can find stuffthat is enchanted with them in random chests, events, and also in staff's ender chests :P
Lightning I is enchant that summons a lightning on the hited target (including blocks). It can be used from distance.
Fireball I is enchant that throws a ghast fire ball, on the way the owner of the enchanted item looks.
Obsidian Shield V is enchant that is the same as to enchant your armour with all protections. Obsidian Shield I is like all protections on level 2, Obsidian Shield II - like all protections on level 4, Obsidian Shield III - like all protections on level 8.
Explosion X is enchant that summons a activated tnt. When summoned the tnt needs 0,7 seconds to explode. Better use Blast Protection or Obsidian Shield, when summoning the tnt.
Fortified VII is enchant that makes your armour sronger. It has diferent levels.
Fortified VII Obsidian - The best of all.
Fortified VII Diamond - Goes on second place!
Fortified VII Crystal - Goes on third place!
Fortified VII Gold - Goes on 4th place! In minecraft gold isn't the best material for armours, tools, swords... but as enchant is good!