Beyonder thought he didn't have enough power to re-create Death:
"The only way to do that (bring back Death) would be by Killing something, and that's even beyond my power now"
But Dave clears his mind by saying:
"I can't believe that, You STILL have more power than all of the mighty combined, there Must be a way"
Now Beyonder gains confidence and says:
"I suppose I could Try"
This is where one can misinterpret:
"Maybe if someone, some Sentient Creature were Willing"
Dave interrupts him and asks:
"Willing to Die?"
Beyonder responds:
"Worse ... to Become Death" (so it's NOT willing to die)
Beyonder goes on to say:
"In a manner of speaking (figuratively)
for from the first Death,
It's grim spectre would rise again"
So what does this tell you?
That something Sentient has to Die,
in order for the Concept of Death to be a part of Reality again.
But now it takes a power capable of killing, when there is No Concept of Death,
Molecule Man clearly said,
"ALL the Powers in the Multiverse TOGETHER CAN'T Kill something to get it started again"
Now Beyonder shines: (and Re-Creates the Multiversal Concept of Death Anew)
Trying to down play the Beyonder's feats is folly.