[quote=@Delta44]
The poison's effects could be countered after the battle thanks to her self-healing ability. So long as she was able to stand, she could still fight. 

"Low, but not impossible. The Grand Marshal wouldn't buckle to the might of an angel, and neither will we! Black Bane!" She announces, imbuing her sword with dark magic and slashing through the air with it, sending a slash of dark magic at both Anna and Gabriel. 
[/quote]

And Gabriel blocks the attack his sword, though again, he winced in pain as his skin made contact with the dark energy. Gabriel was now getting ready to send another wave of energy. However, if she looked around, she could see that the gnoll had managed to sneak away somehow, though if she looked behind Anna, she could see where he had vanished.

She just had to buy him a few more seconds so that he could take Anna hostage and maybe end this battle early.