Yeah, just send the Sirens to one of the most tumultuous times in history.

@dynamicv  
Even though they could still absorb hate and incited conflicts to feed from it.
 
GG Star, GG.

@dynamicv  
Except their own?

But he chose an option far crueler then anyhing they had done, so two wrongs do not make a right

@PonyPon
 
The next page shows that he knew the other world had no magic for them to abuse.

Kind of a stupid gamble, Star.