Essence of Air is a crafting material used in a few high level vanilla formulas, including heirloom weapon agility enchants. Since they’re rarely obtained while leveling, they’re often in short supply on the auction house. Here are a couple of ways you can obtain Essences of Air to use for crafting or to sell on the AH for lots of gold!
If you’re leveling an alt, heirlooms are definitely the way to go. The added XP bonus and automatic upgrades as you level make heirloom armor and weapons a boon to the alt leveling process. Normally you wouldn’t enchant your gear while leveling since it gets replaced very quickly. With heirlooms, you can enchant your gear and be incredibly powerful even at the low levels, making your leveling process a bit quicker. Here’s a few recommended enchants and item enhancements you can use to boost the power of heirloom weapons, chest pieces, and cloaks while you level up your next alt.
If you’re in the process of leveling a new character in World of Warcraft, heirloom armor and weapons can help enhance your leveling experience in more ways than one. The stats in heirlooms will scale with your level, and possibly provide bonus experience for killing monsters and completing quests. For an added power boost, you can even enchant your heirlooms.