Nebula: Epsilon Eridani Remnant Found
Champion size when encountered: Frigate/Destroyer/Cruiser
Factions: Epsilon Eridani Remnant vs. Sorrow's Fang
Reward: Epsilon Eridani Fabricator Produces 100 metal and 100 crystal per second. Allows construction of 3 Delvers, 3 Magmas, and 1 Avalanche.
The experience reward depends mostly on time. Faster is better.
Tactics: Your champion will likely be ill-equiped to deal with starbases directly. Follow the groups of bomber-type starships (Delver) and protect them with your shields and projected shields.
Don't let the Sorrow's Fang form large groups of ships.
Losing a couple small bases isn't a big deal.