The Eddie is one of those noob crutches like the Rosie, nowhere near a necessity, especially if you’re not using lasers. Things like the Systems Purge/Duality Combo or something Like a Tranquility is way better for his DPS, which in turn helps his survival. Even the Moonlight Saga is a billion times better as it turns your guns into moxxie guns in a vacuum.
Also the Eridian Vanquisher is one of his lamer COMs, I mean it boosts Elemental Effect Chance, Air Control and Max Health, all of which are either not very useful or detestably counterproductive to what he wants to accomplish, like NOWHERE close to being one of his best coms. If you were gonna boost elemental effect chance for something like cryo anyway use a Chronicler, it gives you additional Damage and shield cap with your freeze chance, while boosting WAAAAY Better skills. Arguably his fourth or fifth best COM, if even that, but there are definitely several better COMs to choose from.