Blood Weapon / other DRK suggestions:

[Cabalabob]

Why would you want to use it on a boss. So when it dies and you collect your loot your healed for 20% max life/power? You regenerate out of combat so fast. Also, under 15% is a very good mechanic because that is how Mercy Stroke is. It does nothing if they are alive.

Because what do you define as a boss? How would the game know? How would it restrict it? Is a dungeon mini boss a boss? Yes I'd want to use it on one of those as there's trash right after and I might be tapped out and it would get me to the next pull faster. Is a hunt a boss? Yes I want to use it on one of those as I might go right back into farming mobs around it after. Is zombie dragon in CT a boss? He dies 3 times yes I'd want to use it on him to get my mp back up. It's a stupid restriction. You just need to learn to use it properly and not expect the game to do it for you. The 15% on mercy stroke is a restriction not a benefit, it's there because it does damage, if it was unrestricted you could open with it and spam it throughout the fight for an extra 200 potency attack.

[Nektulos-Tuor]

Because what do you define as a boss? How would the game know? How would it restrict it? Is a dungeon mini boss a boss? Yes I'd want to use it on one of those as there's trash right after and I might be tapped out and it would get me to the next pull faster. Is a hunt a boss? Yes I want to use it on one of those as I might go right back into farming mobs around it after. Is zombie dragon in CT a boss? He dies 3 times yes I'd want to use it on him to get my mp back up. It's a stupid restriction. You just need to learn to use it properly and not expect the game to do it for you. The 15% on mercy stroke is a restriction not a benefit, it's there because it does damage, if it was unrestricted you could open with it and spam it throughout the fight for an extra 200 potency attack.

Bosses in this game, are usually surrounded by an area or arena. They also usually drop a chest afterwards. Usually are found in Dungeons and Raids. That fight "the dragon" also has a ton of adds you can use it on. Don't be a baby, this is a really good change and actually a good idea.

[HoodRat]

I've always kind of wanted Living Dead to act as a bomb that dealt damage equal to your max hp if you died from Walking Dead. I'm sure someone would form a hilarious strat involving using a drk as a suicide bomb.

[MagiusNecros]

I've always kind of wanted Living Dead to act as a bomb that dealt damage equal to your max hp if you died from Walking Dead. I'm sure someone would form a hilarious strat involving using a drk as a suicide bomb.

It's funny. In Bravely Default if the DRK dies they blow up and deal big damage to all enemies.

Aptly named "See you in Hell". Passive trait.

[Yasminou]

Bosses in this game, are usually surrounded by an area or arena. They also usually drop a chest afterwards. Usually are found in Dungeons and Raids. That fight "the dragon" also has a ton of adds you can use it on. Don't be a baby, this is a really good change and actually a good idea.

Then, consider the last boss of Lost City of Amdapor (hard): it dies thrice and Sole Survivor works on these deaths. I do not see why you would need to wait for the last phase's add to use Sole Survivor. I do not know what to think about the 15% change but I sure cannot see how not letting it works on boss is a "good change".
What about A6, are the four robots bosses in your definition or is it only the last one? If you want to rush, you sure want to use Sole Survivor on them...

[Jim_Berry]

I've always kind of wanted Living Dead to act as a bomb that dealt damage equal to your max hp if you died from Walking Dead. I'm sure someone would form a hilarious strat involving using a drk as a suicide bomb.

Give it a Mijin Gakure death effect like in FFXI.

[Cabalabob]

Bosses in this game, are usually surrounded by an area or arena. They also usually drop a chest afterwards. Usually are found in Dungeons and Raids. That fight "the dragon" also has a ton of adds you can use it on. Don't be a baby, this is a really good change and actually a good idea.

It's not a good change its stupid and unnecessary, clearly you have accidentally used it on a boss when you didn't need to and instead of thinking "maybe I should be more careful with when I use this" you've gone "duuuh, game is broke!"

Anyway you already have a sole survivor sucks thread where everyone widely disagrees with you so I'm not gonna turn this into another one.