Trainer poison bug

[Boingo]

I'll confess that my math skillz aren't what they could be, but I could not figure out why this guy wouldn't die from all the poison damage (T50 deck in trainer).  Here's 2 consecutive turns:

(http://imageplay.net/view/m7Gbd75515/Poison_glitch1)

As his life was sinking to 0, my antimattered deathstalkers seemed to heal him back up.  Somehow 12 -44 +3 +3 = 12...

(http://imageplay.net/view/m7Gbd75517/Poison_glitch2)

Any ideas what's happening here?  It continued like this till I played a new deathstalker/blessing.

[Schattenfresser]

It's a known bug between antimattered creatures and poison:

Attack Animation - Antimatter + Poison

This is a symptom of the Attack Animation bug, where game effects continue to occur because not all attacks are simultaneous or immediate. Because poison damage is applied before creature damage is applied, poison damage should kill a player before an antimattered creature heals the player. Because of the end of turn lag, however, Antimatter can keep a player alive through healing, no matter how much poison is applied, because health cannot drop below 0HP and the game only checks for this effect at some point after the attack animation is completed.

From this thread: Link (http://elementscommunity.org/forum/index.php/topic,145.0.html).

[Boingo]

Thanks--sorry to post it since it's a known bug.  As many times as I've read that thread, I seem to have never absorbed that part of it.