2nd. substitute

[Revan]

tell that to my adam who often kills 2 heroes at once

Technically they don't die at the same time even if it is the same attack.

Example:
0-0-0 hero-0-0
0-main-adam hero-hero-hero
0-0-0 hero-0-0

Adamanti uses thousand strikes.
enemy formation:
3rd ko'd-0-0
hero-1st ko'd-2nd ko'd
hero-0-0

That is how it works as far as I understand it. Andy or someone else who is knowledgeable about this stuff correct me if I'm wrong (if someone is just going to say they die at the same time in response to this, don't bother).