ahh I see so it's merged in that way, I'm not familiar with the original mod

As you know, the Shieldbreaker and the Flagellant are heroes that were added through DLC. This mod is essentially a fixed version of the original "No Permadeath". The creator of the original "No Permadeath" released Shieldbreaker and Flagellant as separate mods, so you had to subscribe to three different mods in total for No Permadeath to apply to all heroes. This version already includes both Shieldbreaker and Flagellant, so with just this one mod, No Permadeath works for every hero. In short, you can think of it as a 3-in-1 package.

What do you mean by Shieldbreaker and Flagellant merged? Are they like merged into 1 class or something like that?