Zod

Zod is the highest ranking rune available and basically never drops. You will most likely have to upgrade runes of lower rank using the Cube. The full transmutative list can be found here. Here are the Zod attributes:

Rank: (r33)
Weapon: Indestructible
Armor/Helm/Shield: Indestructible
Ilvl/Clvl Required: 69

The Right Runes

Look at the rune list for information on how to get the right runes. For weapons you'll want to find the best type of weapon possible, since that's what the bonus damage is based on. Same with Armor if you are after Defense and shields for blocking percentage. If defense isn't important, look for an item that looks good, has low requirements, and for armor and shields, is not going to slow your running speed.

To Make a Runeword

1. Items used for Runewords must be gray text items, normal, exceptional, or Elite. Low Quality, Superior, and Ethereal can be used, but you can not use magical, Rare, Set, Crafted, or Unique items, even if they have the correct number of sockets.
2. The item must be of the correct type.
3. The item must have exactly the correct number of sockets -- no more.
4. You must socket the Runes in the correct order.

Notes:

• The Runes fill the sockets in numerical order automatically, i.e. in the order 1, 2, 3, .... For example, trying to place the third Rune of a Runeword into the third socket while sockets 1 and 2 are empty will result in the Rune filling socket 1, contrary to intentions. As mentioned elsewhere, it is possible to remove an item from a socket, but the item is destroyed in the process.
• The Runeword Preparation Recipes tune equipment for receiving Runewords.
• Check the Rune FAQ for further help.

Runewords with Zod

Runeword	Stats	Comments	Active In
			v1.11+	v1.10	v1.09
Breath of the Dying VexHelElEldZodEth Vex (26) + Hel (15) + El (1) + Eld (2) + Zod (33) + Eth (5) All Ranged & Melee Weapons {6} Clvl Required: 69	50% Chance To Cast Level 20 Poison Nova When You Kill An Enemy Indestructible +60% Increased Attack Speed +350-400% Enhanced Damage (varies) -25% Target Defense +50 To Attack Rating +200% Damage To Undead +50 To Attack Rating Against Undead 7% Mana Stolen Per Hit 12-15% Life Stolen Per Hit (varies) Prevent Monster Heal +30 To All Attributes +1 To Light Radius Requirements -20%	See it here.	Yes	Yes	No