I appologize for my poor english
This is what i found when i use a antimatter Dune Scorpion
the picture is after i improve the attack of it
it happened just before it when the Dune Scorpion attack minus

though the opponent have a 40poison and only 1 hp
it won't die and last for 1hp
it seems that
"the opponent get the antimatter's 1 hp as soon as it die"i cannot kill it until i made the Dune Scorpion'attack plus
i just wonder if this is a setting or a bug
thanks for viewing this.