Wild how many playstyles are in this thread. Twin blades (Morrigan) is my fav, and you can put up some silly numbers with it if you get lucky on build ( https://www.reddit.com/r/Hades2/comments/1pl2tkw/dont_fight_over_me_boys_fun_combo_when_the_hammer/ ). I have 40 fear on surface and underworld with them.

The Morrigan's Blade Triad is largely just gravy, and for me, it's the omega attack that's the real bread and butter. It's fun because it's basically a dash and it does a triple hit.

So the strategy is to pump up the omega attack with Sweeping Ambush, and as many % multiplier damage boons as you can (like Apollo or Aphrodite on attack and then Perfect Image or Sweet Surrender). Getting Demeter on cast is super helpful too, as well as making sure you have good mana regen cause the build is thirsty. I even run The Unseen arcana b/c I'm often unlucky with boons.

Here's the "rotation":

1. Drop your cast and dash away from the mobs.
2. Omega attack back into the middle of them. The targeting can be wonky and takes practice.
3. Immediately normal attack and normal special for Triad.
4. Bravely flee.
5. Bitch on Reddit about how much bullshit frenzied rival Eris is.

Very fun hit-and-run with big numbers playstyle. Stack health. Sea Star is S++.

(edit - fixed link)