0.4.5: Traits/affixes that limit maximum damage sometimes bypassed at start of battle and killed?

Somehow Tellur and 3 other enemies were killed in one shot. Live to Labor was used.
Here’s the battle log
***** The enemy Imp Shaman casts Seismic Crash. *****
DCommand + PhBoon took 0 damage.
DCommand + PhBoon Safe!
***** The enemy Emerald Carbuncle casts Magic Missile. *****
DNemesis+RubyAttunem took 0 damage.
Tellur lost 2.37B Max Health. (Bloodseeker)
Imp Shaman lost 2.37B Max Health. (Bloodseeker)
Entropic Spectre lost 2.37B Max Health. (Bloodseeker)
Irantha Ophan lost 2.37B Max Health. (Bloodseeker)
Sparktail Officer lost 2.37B Max Health. (Bloodseeker)
Emerald Carbuncle lost 2.37B Max Health. (Bloodseeker)
KFirebrand+Concessio gained 47.45M Max Health. (Bloodseeker)
Entropic Spectre took 420.63M damage. (Live to Labor)
***** The enemy Entropic Spectre casts Scourge Life. *****
CClaw+Solace took 0 damage.
KFirebrand+Concessio dodged the attack.
***** The enemy Entropic Spectre is provoking. *****
Entropic Spectre lost 17.16M Intelligence. (Stupify)
Entropic Spectre lost 9.42M Defense. (Stupify)
***** The enemy Entropic Spectre attacks! *****
KFirebrand+Concessio Dodge!
Tellur lost 2.21B Max Health. (Bloodseeker)
Imp Shaman lost 2.21B Max Health. (Bloodseeker)
Entropic Spectre lost 2.21B Max Health. (Bloodseeker)
Irantha Ophan lost 2.21B Max Health. (Bloodseeker)
Sparktail Officer lost 2.21B Max Health. (Bloodseeker)
Emerald Carbuncle lost 2.21B Max Health. (Bloodseeker)
KFirebrand+Concessio gained 44.20M Max Health. (Bloodseeker)
Imp Shaman took 395.63M damage. (Live to Labor)
***** The enemy Imp Shaman casts Scourge Sorcery. *****
Siege Automaton +MDF Prevented! ( Repelling)
Siege Automaton +MDF took 0 damage.
DNemesis+RubyAttunem dodged the attack.
***** The enemy Imp Shaman is provoking. *****
***** The enemy Imp Shaman attacks! *****
DNemesis+RubyAttunem Dodge!
Tellur lost 595.15M Max Health. (Bloodseeker)
Imp Shaman lost 2.69B Max Health. (Bloodseeker)
Entropic Spectre lost 2.69B Max Health. (Bloodseeker)
Irantha Ophan lost 1.93B Max Health. (Bloodseeker)
Sparktail Officer lost 2.69B Max Health. (Bloodseeker)
Emerald Carbuncle lost 2.69B Max Health. (Bloodseeker)
KFirebrand+Concessio gained 53.91M Max Health. (Bloodseeker)
Tellur took 30.15M damage. (Live to Labor)
Tellur was killed.
Imp Shaman lost 2.73B Max Health. (Bloodseeker)
Entropic Spectre lost 1.12B Max Health. (Bloodseeker)
Sparktail Officer lost 392.25M Max Health. (Bloodseeker)
Emerald Carbuncle lost 8.71M Max Health. (Bloodseeker)
KFirebrand+Concessio gained 54.67M Max Health. (Bloodseeker)
Irantha Ophan took 47.54B damage. (Live to Labor)
Irantha Ophan was killed.
Imp Shaman lost 262.09M Max Health. (Bloodseeker)
KFirebrand+Concessio gained 54.32M Max Health. (Bloodseeker)
Emerald Carbuncle took 47.23B damage. (Live to Labor)
Emerald Carbuncle was killed.
KFirebrand+Concessio gained 54.39M Max Health. (Bloodseeker)
KFirebrand+Concessio took 1.81B damage. (Ravish)
KFirebrand+Concessio recovered 10.64B Health. ( Leeching)
Sparktail Officer took 47.30B damage. (Live to Labor)
Sparktail Officer was killed.
Imp Shaman gained gem: Ice Bolt. (Tender of Earth)
Entropic Spectre gained gem: Impending Doom. (Tender of Earth)
KFirebrand+Concessio gained 36.71M Max Health. (Bloodseeker)

realm properties

I don’t get it. It killed two other enemies when I retried this fight.
Tribalist spec and massive HP with bloodseeker. Not sure of any cause.

It happened in a nemesis pack with protected affix.

You’ve been attacked by a pack of Nemesis Creatures with the Protected affix.
Enemies cannot take damage that exceeds more than 25% of their Maximum Health.
Inox Apocalypse Killed! ( Even the Odds)
Zrarul lost 48.53M Max Health. (Bloodseeker)
Satyr Squire lost 25.25M Max Health. (Bloodseeker)
Sandstone Imler lost 67.86M Max Health. (Bloodseeker)
Enim Ophan lost 23.67M Max Health. (Bloodseeker)
Viridian Wolpertinger lost 21.30M Max Health. (Bloodseeker)
KFirebrand+Concessio gained 9.79M Max Health. (Bloodseeker)
Enim Ophan took 6.57M damage. (Live to Labor)
Enim Ophan was killed.
KFirebrand+Concessio gained 9.75M Max Health. (Bloodseeker)
Satyr Squire took 701.44K damage. (Live to Labor)
Satyr Squire attacked DNemesis+RubyAttunem.
Satyr Squire attacked Sandstone Imler.
Satyr Squire attacked DCommand + PhBoon.
***** The enemy Satyr Squire is defending. *****
***** The enemy Satyr Squire attacks! *****
DNemesis+RubyAttunem took 954.45K damage. (Critical)
***** The enemy Satyr Squire attacks an ally due to its confusion! *****
Sandstone Imler took 1.88M damage. (Critical)
***** The enemy Satyr Squire attacks! *****
DCommand + PhBoon took 954.45K damage. (Critical)
KFirebrand+Concessio gained 9.76M Max Health. (Bloodseeker)
Viridian Wolpertinger took 591.84K damage. (Live to Labor)
***** The enemy Viridian Wolpertinger is defending. *****
KFirebrand+Concessio gained 9.76M Max Health. (Bloodseeker)
Zrarul took 1.34M damage. (Live to Labor)
Zrarul attacked DCommand + PhBoon.
***** The enemy Zrarul attacks! *****
Zrarul buffed: Defensive. (Artifact)
DCommand + PhBoon took 1.99M damage.
***** The enemy Zrarul is defending. *****
KFirebrand+Concessio gained 9.78M Max Health. (Bloodseeker)
Sandstone Imler took 1.88M damage. (Live to Labor)
Sandstone Imler attacked CClaw+Solace.
***** The enemy Sandstone Imler attacks! *****
CClaw+Solace took 7.38M damage. (Critical)
***** The enemy Sandstone Imler is defending. *****
***** Your DNemesis+RubyAttunem is defending. *****

Realm properties + fusions

I’m pretty sure you’re reducing the enemies’ maximum health to its minimum point (20%), and on that same turn, dealing damage to them based on the original amount of health they had (100%). So, while it’s probably not a bug, it is a balance issue related to maximum health reduction that I’ll need to address in the future.