OneMoreTime

You can avoid death from high-damage attacks if you have more than 6 hearts of health. Instead of being eliminated in a single hit, you'll stay alive with half a heart remaining, giving you a fighting chance to escape or recover!

Supported Damage Types:

Spoiler

Explosion (TNT, Creepers, etc.)
Fall Damage
Player Attacks (PvP scenarios)
Mob Attacks (Hostile creatures)
Magic Damage (Potions, certain mob abilities)
Mob Projectiles (Skeleton arrows, etc.)
Player Explosions (Bed explosions in the Nether/End)

Features:

Survival Protection: If your health is above 6 hearts, incoming fatal damage from the listed types will leave you at half a heart instead of killing you.
Balanced Gameplay: This mod adds a layer of survivability without making you invincible, perfect for those who want a more forgiving survival experience.

Imagine when you're playing RPG modpack with your friends and they survive boss attack with just half a heart.