Shokei Sareta Kenja wa Lich ni Tensei Shite Shinryaku Sensou wo Hajimaru - Vol. 7 Ch. 27 - 「The most powerful hero in history」

[MangaDex]

 

[Salfaro]

"I was once called a sage. And also... we are looking for redrawers."

 

[Shinigamisama]

Every step I take, all I feel is death.
That's what I feel when I step on Lego.

 

[Spooder9]

Dwight can't be that badass right?

 

[SpecialProjectY]

This chapter really earned this manga a "gore" tag.

 

[RobDog]

So he could jus cut her chains from the beginning.
Oh, so majestic this "I got so drained, I powered up by 100x to defeat my enemy".
Senzu beanz as well, just be at the point of death, get a senzu bean, and you're stronger without working for it...

 

[theldras]

Every step I take, all I feel is death.
That's what I feel when I step on Lego.

i once stepped on a D4, and let me tell you, i rather step on hundreds of Lego pieces then step on 1 D4 die ever again.

 

[ClemCa]

So he could jus cut her chains from the beginning.
Oh, so majestic this "I got so drained, I powered up by 100x to defeat my enemy".
Senzu beanz as well, just be at the point of death, get a senzu bean, and you're stronger without working for it...

There was no real reason to cut them earlier though. When she still had the soldiers, she could make others. It's also a risky move to put aside your specialty to focus on swordmanship when the slow and steady method was inherently safer. The fact she absorbed his mana is a factor that can only be used in hindsight.