I recently found a very stupid, but highly effective tactic that allows me to finish any non-PvP battle in a single turn, excluding bosses who are immune to Doom. It requires a fairly specific team so it won't be available to everyone, but I figured I'd share it just for schnitzengiggels. I don't read a whole lot of forum posts, so forgive me if this is already common knowledge.
The bare minimum requirements are:
~Eternity Eddie (like I said, it's very stupid. You know which move the whole strategy will revolve around)
~Beast Eddie
~Mystic Eddie (his fury move must be upgraded to give it 100% effect chance)
~and any ally that can guarantee an extra turn for a targeted teammate --
I know the gunner Golden Son and sentinel Harpy work, though I prefer the harpy since her extra turn skill costs 1 less power (but requires skill shards for 100% chance)
~Anyone with an AOE basic move with Energy talismans; better if their basic also steals or generates power on its own
So here's what you do: spam Eternity Eddie's stupid Duelist move until your fury is full; switch to Beast Eddie and use his fury to doom all enemies; use the Harpy/Golden Son/whoever else to give Eddie an extra turn; switch back to Eternity Eddie and spam your fury back to full; switch to Mystic Eddie and use his fury to trigger all of the doom effects --> profit!
I also have a thread about my ideas for fixing Eternity Eddie's broken basic ability without ruining its functionality. Have a look if you're interested and let me know what you think.
https://forum.ironmaidenlegacy.com/s...3870#post93870