These abilities are not overpowered, so there is no need to remove or change them.
Comeback kid: After you "comeback" you only have 1hp. Get hit once more and that character is dead. Not fun if your character is poisoned, burning, etc. Helpful in the beginning of the game, practically useless mid to late game.
Leech: If you get hit, then you heal like 15-30 hp. Later in the game that is less than 5% of your HP pool... The talent is certainly helpful at the beginning of the game, but is far from being overpowered, it is actually a completely useless skill later in the game.
Comeback kid + leech: You have 30 hp. You get hit for 400 dmg by melee attacker. You would die, but comeback kid prevents it. And leech heals you, so you have 30 hp again. You get hit again. Same thing happens again. You get hit thousand more times. You're still alive.
Yeah, immortality vs melee attackers is certainly not overpowered.
Leech: You have 100/3000 hp. Some enemy cause you to bleed, or you cast bloodletting on yourself. Boom. You have 3000/3000 hp instantly.
Yeah, ridicolously cheap insta 100% heal is certainly not overpowered.
Yeah, you're right, these traits are useless trash. Thank you for your deep insight.
