Influence is the primary currency in City of Heroes, used for purchasing enhancements, recipes, salvage, and various other items. Earning and managing influence is crucial for character progression, especially when you start crafting Invention Origin enhancements. Here are tips for maximizing your influence:

- Mission Rewards: Completing missions, especially higher-level ones, grants significant influence.
- Selling Drops: Sell unwanted enhancements, salvage, and temporary powers to vendors or on the Auction House (Black Market).
- AE Farming: Some AE missions are designed to drop valuable salvage or recipes that can be sold for high influence.
- Crafting & Selling IOs: Once you have a good supply of recipes and salvage, crafting popular Invention Origin enhancements and selling them on the Black Market can be a highly lucrative venture.
- Market Flipping: Experienced You can buy low and sell high on the Black Market, but this requires a good understanding of market trends.
The Black Market is a player-driven economy, so prices fluctuate. Keep an eye on demand for certain items to maximize your profits.