butterfly touch trait not working properly

the description implies if an enemy has 100 hp and my creature normally deals over 100 damage, it will only deal 99 (leaving it at 1), then deal 0 on subsequent attacks. right now it seems to just set damage of my attacks AND spells to 1, and it still deals 1 damage if the enemy has 1 hp.

Please describe in as much detail as possible how to reproduce the bug or crash.
I have a carver sadist with an artifact that has butterfly touch and was able to kill a level 1 realm enemy by defending repeatedly

What operating system are you playing the game on? Windows, Mac OS, Android, iOS, or Playstation?
If it’s Playstation, please also state your region (NA or EU). If it’s a mobile device, please state the device’s model/brand (such as Nexus 5 or Samsung Galaxy Tab 4).

Windows

What game version are you playing? You can find the version number on the title screen in the lower left corner.
1.1.1

Thanks!