What was that boon that halfed your life, and made you heal on hit

[OnlyLFeris]

I got it on my second run, and it allowed me to get past the first three sections of the game, does anyone know what this boon/upgrade was called

[Uli Minati]

I think Hammer boon for Sword, "Cursed Slash - Your Attack restores 2 Health, but you have -60% life and healing"

[Sishiya]

It's a Daedelus upgrade for the sword only called Cursed Slash. It was easily the largest contributing factor to my first clear; combined with as much damage reduction as you can get and Athena's Call and Dash, you're unstoppable.

[Tinytim]

It's the most broken daedalus mod in the game. Should get reworked to 40% and 1hp per hit imo. One run I facetanked Hades because I had a good combo.

Don't expect to build a run around it until you've actually gotten it though. Never do runs assuming you'll get the correct daedalus upgrade. Build as good as you can and when you get a major game changer, then you adapt your build to it afterwards.

[Anderson]

Cursed Slash + Faster Attack = almost unkillable.